Prepare to indulge in a truly irresistible classic: this decadent Mississippi Mud Cake. A rich, moist chocolate cake serves as the perfect foundation, generously topped with a layer of gooey, melted marshmallows, and crowned with a luxurious, thick, fudgy chocolate pecan frosting. This easy-to-follow recipe is not just a cake; it’s an experience, making it an ideal choice for any special occasion, holiday feast, casual potluck, or simply when a profound chocolate craving strikes. It’s guaranteed to become a new, cherished favorite in your dessert repertoire!
For those with an insatiable love affair with all things chocolate, you’re in good company! Be sure to explore these other beloved chocolate creations: Classic Chocolate Cheesecake, delightful Chocolate Cupcakes, and an exquisitely tender Chocolate Pound Cake!

Discover the Decadence: The Ultimate Mississippi Mud Cake Recipe
If your heart beats for rich, intensely chocolatey, and delightfully gooey desserts, then this Mississippi Mud Cake is about to sweep you off your feet and claim its spot as a new culinary obsession. This iconic Southern recipe masterfully combines a deep, moist chocolate cake with a luscious layer of melted marshmallows and a dreamy chocolate-pecan frosting, creating an unforgettable treat that promises to be an instant hit with everyone who tastes it. It’s truly the ultimate crowd-pleaser – deceptively simple to prepare, yet guaranteed to satisfy even the most discerning sweet tooth with its layers of unparalleled flavor and texture.
Every bite of this easy-to-make cake delivers an explosion of chocolatey goodness, making it perfect for grand parties, intimate family gatherings, or simply as a comforting sweet indulgence at home. What truly elevates this cake is the harmonious way all the distinct flavors and delightful textures meld together. It’s designed as a single-layer cake, eliminating any stress over elaborate frosting techniques or intricate decoration. The process is wonderfully straightforward: bake the tender cake, sprinkle on a generous amount of marshmallows, and then pour over the quick, decadent chocolate-pecan frosting. The result is a dessert that looks impressive and tastes even better, without demanding hours in the kitchen.
Whether you’re planning a holiday menu, contributing to a community potluck, or hosting a family reunion, this Mississippi Mud Cake consistently earns rave reviews. Its inviting appearance and irresistible flavor profile make it a star at any event, ensuring everyone leaves with a smile and a satisfied craving for chocolate.

Why This Mississippi Mud Cake Will Become Your Go-To Dessert
This Mississippi Mud Cake is nothing short of a chocolate lover’s dream, an exquisite fusion of flavors and textures, all brought together in one surprisingly easy-to-create dessert. Prepare to savor every single decadent bite!
- Unforgettable Flavor & Texture: The magic lies in the symphony of its layers. A deep, rich chocolate cake provides a tender and moist foundation. Above it, a cloud of soft, gooey melted marshmallows adds a unique, sweet stickiness. Finally, a thick, fudgy chocolate pecan frosting blankets the entire creation, introducing a delightful crunch and an intense chocolate finish. Each spoonful is a journey through contrasting yet complementary sensations that truly tantalize the taste buds.
- Effortlessly Easy to Make: Forget complicated baking projects that require special skills or obscure ingredients. This recipe is refreshingly straightforward, designed for bakers of all skill levels, from beginners to seasoned pros. It calls for readily available pantry staples, making it convenient to whip up at a moment’s notice whenever a craving strikes or an unexpected guest arrives. There’s no need for intricate layering or advanced decorating techniques; its rustic charm is part of its appeal.
- Perfect for Any Gathering: Its substantial nature and easy transportability in a standard 9×13-inch baking dish make this cake an exceptional choice for virtually any occasion. From festive holiday celebrations and joyous birthday parties to casual potlucks, church gatherings, or cozy family dinners, this cake always fits right in. It’s hearty enough to feed a crowd and impressive enough to make any event feel special.
- A Guaranteed Crowd-Pleaser for All Ages: The universal appeal of chocolate, combined with the fun texture of marshmallows and the satisfying crunch of pecans, ensures this cake is a hit with everyone, from the youngest guests to the most mature palates. It’s the kind of dessert that sparks conversations and leaves a lasting, delicious memory.

Essential Ingredients for Your Perfect Mississippi Mud Cake
This authentic Mississippi Mud Cake recipe is built on a foundation of a moist, flavorful chocolate cake, generously topped with a soft marshmallow layer and finished with a rich chocolate pecan frosting. The beauty of this recipe lies in its reliance on common ingredients that you likely already have in your pantry. Let’s take a closer look at what you’ll need to create this amazing dessert. For precise measurements, please refer to the detailed recipe card below.
For the Rich Chocolate Cake Base
- All-Purpose Flour: This forms the essential structure of your cake. For the lightest, most tender crumb, always remember to spoon and level your flour rather than scooping it directly from the bag. This prevents compacting the flour and making your cake dense.
- Granulated Sugar: Beyond just sweetening, sugar contributes significantly to the cake’s moistness and tender texture. For a slight variation in flavor and a deeper caramel note, you can easily substitute brown sugar.
- Unsweetened Cocoa Powder: This is the star ingredient that bestows the cake with its characteristic deep, intense chocolate flavor and dark “muddy” color. Opt for good quality unsweetened cocoa powder for the richest taste. Dutch-processed cocoa will give a darker color and milder flavor, while natural cocoa will be more acidic and reactive.
- Leavening Agents (Salt, Baking Powder, and Baking Soda): This dynamic trio is crucial for the cake’s rise and overall texture. Baking powder and baking soda work to create air bubbles, resulting in a light and fluffy cake, while salt balances the sweetness and enhances all the chocolate flavors. Always ensure these agents are fresh for optimal results.
- Milk: Adds vital moisture and richness to the cake batter. Whole milk is recommended for a creamier, more indulgent texture, but other milk varieties can be used.
- Vegetable Oil: A key ingredient for achieving that wonderfully soft, tender, and moist crumb that defines a great mud cake. Unlike butter, oil remains liquid at room temperature, contributing to a consistently moist cake that stays fresh longer. Canola oil is an excellent substitute if vegetable oil is not available.
- Eggs: Act as binders, holding all the ingredients together and providing additional structure to the cake, contributing to its rise and overall stability.
- Boiling Water: This helps to bloom the cocoa powder, intensifying its flavor and creating a thin batter that bakes into an incredibly moist and fluffy cake. For an even deeper, more complex chocolate flavor, you can substitute the boiling water with hot brewed coffee. The coffee won’t make the cake taste like coffee, but it will enhance the chocolate notes beautifully.

Crafting the Irresistible Toppings and Fudgy Frosting
- Mini Marshmallows: The signature marshmallow layer is what truly makes this cake unique and gives it its iconic gooey, sweet finish. When baked briefly, they melt into a soft, sticky blanket that complements the chocolate perfectly. For an alternative, a layer of marshmallow fluff can also be spread over the warm cake.
- Butter (Salted): Forms the rich, creamy base of the fudgy frosting. Using salted butter can help balance the sweetness; if using unsalted, consider adding a pinch of salt to the frosting.
- Unsweetened Cocoa Powder: Just like in the cake, unsweetened cocoa powder gives the frosting its deep chocolate flavor and desirable dark “muddy” color.
- Powdered Sugar (Confectioners’ Sugar): Essential for perfectly sweetening the frosting and achieving its smooth, velvety consistency without any grittiness.
- Milk: Used to thin the frosting to the perfect pouring consistency, ensuring it spreads smoothly over the marshmallow layer, and helps round out the overall flavors.
- Pecans (Chopped): These add a wonderful crunch and a distinctly nutty, buttery flavor that provides a fantastic contrast to the rich chocolate and gooey marshmallows. They are an integral part of the classic Mississippi Mud Cake experience. Feel free to chop them finely for an even distribution or more coarsely for bigger bites of crunch.

Step-by-Step: How to Bake Your Amazing Mississippi Mud Cake
One of the many reasons to love this Mississippi Mud Cake is its delightful simplicity. There are no complicated layers to stack, no need for a perfectly smooth exterior frosting, and absolutely no fuss. This cake is a joy to make and an even greater joy to devour, bursting with incredible flavor in every bite. Follow these straightforward steps to create your own masterpiece:
- Prepare Your Pan and Oven: Begin by preheating your oven to 350°F (175°C). Lightly grease and flour a standard 9×13-inch baking pan. Ensure the entire surface is covered to prevent sticking.
- Combine Dry Cake Ingredients: In a large mixing bowl, thoroughly whisk together the all-purpose flour, granulated sugar, cocoa powder, salt, baking powder, and baking soda. This ensures all the leavening agents and flavorings are evenly distributed.
- Add Wet Cake Ingredients: Pour the milk, vegetable oil, and eggs into the bowl with the dry ingredients. Stir diligently until everything is just combined and you no longer see any pockets of dry flour. Be careful not to overmix.
- Incorporate Boiling Water: Carefully add the boiling water to the batter. Mix until smooth. It’s normal for the batter to appear quite thin at this stage; this is a characteristic feature that contributes to the cake’s exceptional moistness.
- Bake the Cake Base: Pour the thin cake batter evenly into your prepared 9×13-inch baking pan. Transfer it to the preheated oven and bake for approximately 25-30 minutes, or until a wooden skewer or toothpick inserted into the center of the cake comes out with only a few moist crumbs attached.
- Add Marshmallows: Immediately upon removing the cake from the oven, evenly sprinkle the mini marshmallows over the entire warm surface. The residual heat from the cake will begin to soften them.
- Melt Marshmallows: Return the cake to the oven for an additional 2-3 minutes. Keep a close eye on it during this step; you want the marshmallows to puff up slightly and melt into a gooey layer, but not brown or burn.
- Prepare the Frosting Base: While the cake cools slightly and the marshmallows are melting, start on the frosting. In a medium saucepan, melt the salted butter over medium heat until fully liquid.
- Create the Fudgy Frosting: Once the butter is melted, whisk in the powdered sugar, cocoa powder, and milk until the mixture is completely smooth and free of any lumps. Stir in the chopped pecans. Continue stirring for about 1 minute, but do not allow the frosting to come to a full boil. The goal is a warm, pourable, fudgy consistency.
- Frost the Cake: Immediately pour the warm chocolate pecan frosting evenly over the hot, marshmallow-topped cake. Use an offset spatula or the back of a spoon to spread the frosting, ensuring it completely covers the gooey marshmallow layer.
- Garnish and Cool: If desired, sprinkle some additional finely chopped pecans over the still-wet frosting for an extra touch of flavor and visual appeal. This step is crucial: allow the cake to cool completely at room temperature before you attempt to slice and serve it. This patience ensures the marshmallow and frosting layers set beautifully, preventing a gooey, messy presentation.

Storing and Enjoying Your Mississippi Mud Cake
Proper storage is key to extending the deliciousness of your Mississippi Mud Cake. Here are some guidelines:
- Make Ahead Perfection: This cake is an excellent make-ahead dessert! You can bake the entire cake a day in advance of serving. Simply ensure it is completely cooled, then cover it tightly with plastic wrap or aluminum foil and store it at room temperature. The flavors often deepen overnight, making it even more delicious.
- Storing Leftovers: Any leftover cake should be stored in an airtight container at room temperature. It will remain wonderfully fresh and moist for up to 3 days. If you prefer a chilled cake or want to extend its shelf life further, you can refrigerate it, also in an airtight container, for up to a week. Just note that chilling can make the frosting and marshmallows a bit firmer.
- Freezing for Later: Mississippi Mud Cake freezes beautifully! To freeze, wrap individual slices or the entire cooled cake tightly first in plastic wrap, then in aluminum foil, and finally place it in a freezer-safe bag or container. It can be stored in the freezer for up to 3 months. When you’re ready to enjoy it, simply let it thaw overnight in the refrigerator, or at room temperature for a few hours.
Serving Suggestions and Flavor Enhancements
Mississippi Mud Cake is truly best savored at room temperature. This allows the creamy frosting and the gooey marshmallow layer to achieve their ideal soft textures. Serving it warm straight from the oven, before it has a chance to set, will inevitably result in a wonderfully tasty but undeniably goopy, marshmallowy mess. This waiting period is often the hardest part of making this irresistible cake! Enjoy this rich dessert on its own, or elevate the indulgence with a scoop of creamy vanilla ice cream or a dollop of fresh whipped cream.
Creative Variations to Try
- Nut-Free Alternative: If you or your guests have a nut allergy or simply prefer a nut-free version, easily skip the pecans in the frosting. For a delightful textural contrast, consider mixing in a handful of mini chocolate chips into the frosting instead.
- Extra Chocolate Boost: For the ultimate chocolate experience, enhance the cake batter by stirring in a handful (about ½ cup) of your favorite chocolate chips before baking. This adds an extra burst of melted chocolate in every bite.
- Deep Coffee Infusion: To intensify the chocolate flavor without making the cake taste like coffee, substitute the boiling water in the cake batter with an equal amount of hot brewed coffee. The coffee enhances the cocoa notes, creating a richer, more profound chocolate taste.
- Alternative Nuts: Not a fan of pecans? No problem at all! Chopped walnuts, slivered almonds, or even crunchy pistachios would all make excellent and delicious substitutions, each adding their own unique flavor profile and texture.
- A Boozy Twist (Optional): For an adults-only version, consider adding a tablespoon or two of Kahlua, Bailey’s Irish Cream, or even a good quality bourbon to the chocolate frosting for an extra layer of sophisticated flavor.

Your Questions Answered: Mississippi Mud Cake FAQs
Can I use a different size baking pan for this recipe?
Yes, absolutely! While a 9×13-inch pan is standard, you can adapt the recipe for two 9-inch round pans. Keep in mind that the baking time will likely need to be reduced by a few minutes, as thinner cakes bake faster. Keep a close eye on the cakes, testing for doneness with a toothpick inserted into the center. You might need to adjust the frosting amount slightly for a layered cake if you decide to fill between layers.
Is it possible to make this cake without marshmallows?
You certainly can! While the gooey marshmallow layer is a distinctive feature that gives Mississippi Mud Cake its unique texture and name, you can omit them and still have an incredibly delicious, rich chocolate cake. The fudgy pecan frosting alone will make it a standout dessert. The cake will still be wonderfully moist and chocolatey.
Do I have to include pecans in the frosting?
Not at all! The pecans add a fantastic crunch and nutty flavor, but if you prefer a nut-free dessert or simply don’t enjoy pecans, feel free to skip them entirely. You can also swap them out for other chopped nuts like walnuts, almonds, or even cashews if you like. For a nut-free textural element, consider adding mini chocolate chips instead.
What makes this cake a “mud” cake?
The “mud” in Mississippi Mud Cake refers to its dense, rich, and intensely chocolatey nature, reminiscent of thick river mud, particularly when the fudgy frosting is poured over the cake. The dark color, combined with the moist, almost gooey texture, evokes the imagery of deep, rich earth, making the name quite fitting for this decadent Southern dessert.
Can I use homemade marshmallows instead of store-bought mini marshmallows?
Yes, you absolutely can use homemade marshmallows! They would add an extra layer of gourmet touch to your cake. Be sure to cut them into small, bite-sized pieces so they melt evenly over the cake. Just ensure they are not too large, or they might not melt as quickly and evenly as mini marshmallows.
Expert Baking Tips for Mississippi Mud Cake Success
Achieving a perfectly moist and delicious Mississippi Mud Cake is simple with these expert tips:
- Ensure Fresh Leavening Agents: For the best rise and texture in your cake, always make sure your baking powder and baking soda are fresh. Expired leavening agents can result in a dense, flat cake. You can test their freshness by mixing a small amount with warm water (for baking soda) or hot water (for baking powder) – it should bubble vigorously.
- Measure Flour Correctly: Accuracy in flour measurement is paramount. Always spoon your all-purpose flour into your measuring cup rather than scooping directly, and then level it off with a straight edge or knife. This prevents compacting the flour, which can lead to a heavy and dense cake.
- Embrace the Thin Batter: Don’t be alarmed if your cake batter seems unusually thin after adding the boiling water. This is perfectly normal and, in fact, essential! This thin consistency is precisely what contributes to the cake’s incredibly moist and tender crumb once baked. Trust the process!
- Don’t Aim for Perfection: This cake is meant to be carefree, rustic, and fun! Its charm comes from its gooey layers and unpretentious appearance. Don’t stress over achieving a perfectly smooth frosting finish or immaculate edges. The beauty of Mississippi Mud Cake lies in its rich, indulgent nature, not in overly precise presentation.
- Cooling is Crucial: Patience is a virtue, especially with this cake! It is absolutely vital to allow the cake to cool completely before you attempt to slice and serve it. This extended cooling time allows the marshmallow layer to set properly and the fudgy frosting to firm up, creating distinct, delicious layers that hold their shape. Cutting into a warm cake will result in a delightful but very messy, unstructured dessert.

More Decadent Cake Recipes to Explore
- Triple Threat Chocolate Cheesecake
- White Chocolate Raspberry Cake
- To Die For Carrot Cake
- Banoffee Poke Cake
- Classic Red Velvet Cake
Mississippi Mud Cake: The Ultimate Southern Chocolate Dessert
This rich and gooey Mississippi Mud Cake features a moist chocolate cake base, a delightful layer of melted marshmallows, and a luscious, fudgy chocolate pecan frosting. An easy-to-make dessert, perfect for any occasion that calls for a truly unforgettable chocolate treat!
Print Recipe
Course: Dessert
Cuisine: American, Southern
Keyword: Mississippi Mud Cake, chocolate cake, pecan frosting, Southern dessert
Prep Time: 15 minutes
Cook Time: 30 minutes
Servings: 16 slices
Author: Trish – Mom On Timeout
Calories: 383 kcal
Ingredients
For the Moist Chocolate Cake
- 1 cup all-purpose flour (spooned and leveled, 120 grams)
- 1 cup granulated white sugar
- ½ cup unsweetened cocoa powder
- ¼ teaspoon salt
- ¼ teaspoon baking powder
- ¼ teaspoon baking soda
- ½ cup milk (whole milk recommended)
- ½ cup vegetable oil (or canola oil)
- 2 large eggs
- ½ cup boiling water (or hot brewed coffee for a deeper flavor)
- 10 ounces mini marshmallows
For the Fudgy Chocolate Pecan Frosting
- ½ cup salted butter
- 3 cups powdered sugar
- ½ cup unsweetened cocoa powder
- ¼ cup milk
- ½ cup chopped pecans
For Garnish (Optional)
- Finely chopped pecans
Instructions
- Preheat your oven to 350°F (175°C). Lightly grease and flour a 9×13-inch baking pan and set it aside.
- In a large bowl, whisk together the all-purpose flour, granulated white sugar, ½ cup cocoa powder, salt, baking powder, and baking soda.
- Stir in the milk, vegetable oil, and eggs to the dry ingredients until well combined.
- Carefully stir in the boiling water (or coffee if using) to the batter. The batter will be quite thin.
- Pour the batter into the prepared pan and spread evenly.
- Bake for 25 to 30 minutes or until a toothpick inserted into the center comes out with a few moist crumbs.
- Remove the cake from the oven and immediately sprinkle the 10 ounces of mini marshmallows evenly over the top.
- Return the cake to the oven for 2 to 3 minutes, just until the marshmallows puff up slightly and begin to melt.
- Remove the cake from the oven and allow it to cool slightly while preparing the frosting.
- For the Chocolate Frosting: In a medium saucepan, melt the ½ cup salted butter over medium heat.
- Once the butter is melted, whisk in the 3 cups powdered sugar, ½ cup unsweetened cocoa powder, and ¼ cup milk until no lumps remain. Add the ½ cup chopped pecans and stir for 1 minute before taking off the heat. It does not need to come to a boil.
- Immediately pour the chocolate frosting over the marshmallow-topped cake, evenly covering the marshmallows.
- Sprinkle on additional finely chopped pecans, if desired, for garnish.
- Allow the cake to cool completely at room temperature before slicing and serving.
Recipe Notes
For best results and to fully enjoy the rich textures, ensure the cake is completely cooled before serving. This allows the marshmallow layer and fudgy frosting to set beautifully.
Storage Instructions:
- Make Ahead: This cake can be baked a day in advance. Store it covered at room temperature.
- Storing Leftovers: Keep any leftover cake in an airtight container at room temperature for up to 3 days. For a longer shelf life, it can be refrigerated for up to a week.
- Freezing: For extended storage, wrap individual slices or the entire cooled cake tightly in plastic wrap, then place in a freezer-safe bag or container. Freeze for up to 3 months. Thaw in the refrigerator overnight before serving.
Nutrition Information
(Approximate values per serving)
- Calories: 383 kcal
- Carbohydrates: 59 g
- Protein: 4 g
- Fat: 17 g
- Saturated Fat: 6 g
- Polyunsaturated Fat: 5 g
- Monounsaturated Fat: 5 g
- Trans Fat: 0.3 g
- Cholesterol: 40 mg
- Sodium: 129 mg
- Potassium: 139 mg
- Fiber: 3 g
- Sugar: 46 g
- Vitamin A: 231 IU
- Vitamin C: 0.04 mg
- Calcium: 34 mg
- Iron: 1 mg