Name: Easy Mississippi Mud Cake Recipe
Prep time: 15 min
Cook time: 20 min
Total time: 35 min
Cuisine: Southern American
Ingredients: 2 cups all-purpose flour; 2 cups granulated sugar; 1 teaspoon baking soda; 3/4 teaspoon fine sea salt or table salt; 1 cup salted butter, sliced; 1 cup water; 1/4 cup unsweetened cocoa powder; 2/3 cup sour cream; 2 large eggs, whisked; 1 Tablespoon vanilla extract; 10 ounces mini marshmallows; 1/2 cup salted butter, sliced; 1/3 cup unsweetened cocoa powder; 1/3 cup milk; 1 1/2 teaspoon vanilla extract; 3 cups sifted powdered sugar (plus more if needed); 1/4 teaspoon salt; 1/2 cup finely chopped pecans (optional)

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If you are craving something rich, indulgent, and packed with chocolatey goodness, you absolutely must try this Easy Mississippi Mud Cake Recipe. This dessert is a heavenly treat that combines a moist, fudgy cake base with a luscious marshmallow topping and a velvety chocolate icing, creating a harmony of textures and flavors that is nothing short of spectacular. Whether you’re baking for a crowd or simply want to treat yourself, this cake delivers that cozy, homemade comfort with an impressive wow factor. It is truly a timeless classic that never fails to delight anyone fortunate enough to take a bite.

Ingredients You'll Need

The image shows many ingredients placed neatly on a white marbled surface. There are thirteen items arranged in a loose grid. Starting from the top left, there is a large clear bowl filled with white powdered sugar. Below it, a silver wrapper with pieces of white butter sits next to a clear bowl filled with white sugar. Further below is another clear bowl with flour that looks soft and powdery. To its right, a small glass cup holds a yellow beaten egg mixture. Next to it is a clear measuring cup with water almost full. Above that, a small clear jar contains white salt. Next to it, a silver measuring spoon holds chopped pecans in red-brown and white pieces. Above the spoon, a square yellow bowl is filled with dark brown cocoa powder. Next to it sits a small glass bottle with a dark brown liquid, likely vanilla. Above is a glass jar labeled salt with a gold lid. To the right top corner, a clear measuring cup holds white milk. Below this, a silver wrapper holds pale yellow pieces of butter. Finally, the bottom right corner has a large clear bowl packed with many small white marshmallows. Everything is well spaced and lit clearly. photo taken with an iphone --ar 4:5 --v 7

Gathering the ingredients for this Easy Mississippi Mud Cake Recipe is wonderfully straightforward. Each item plays a critical role in achieving that perfect balance of dense cake, sweet marshmallow topping, and smooth chocolate frosting that defines this dessert.

2 cups all-purpose flour: The backbone of your cake, providing structure and a tender crumb.

2 cups granulated sugar: Adds sweetness and helps develop a moist texture.
1 teaspoon baking soda: A leavening agent that helps your cake rise beautifully.
¾ teaspoon fine sea salt or table salt: Enhances all the flavors and balances the sweetness.

1 cup salted butter, sliced (plus ½ cup for icing): For richness, moisture, and that irresistible buttery taste.
1 cup water: Adds moisture and helps dissolve cocoa and sugar perfectly.
¼ cup unsweetened cocoa powder (plus ⅓ cup for icing): Imparts deep, intense chocolate flavor without extra sweetness.

⅔ cup sour cream: Keeps the cake tender, adding slight tang and moisture.
2 large eggs, whisked: Binds everything together and adds richness.
1 tablespoon vanilla extract (plus 1 ½ teaspoons for icing): Infuses warmth and enhances the chocolate taste.

⅓ cup milk: Combined into the icing for smooth, spreadable texture.
3 cups sifted powdered sugar (plus extra if needed): Sweetens and thickens the luscious frosting.
¼ teaspoon salt: Balances sweetness in the frosting.
10 ounces mini marshmallows: Creates a gooey, delightful topping that melts perfectly.

½ cup finely chopped pecans (optional): Adds crunch and a nutty flavor that complements the chocolate beautifully.

How to Make Easy Mississippi Mud Cake Recipe

Step 1: Prepare Your Pan and Oven

Start by preheating your oven to 350°F and greasing a half sheet pan (18x13 inches). Buttering this pan well ensures your cake comes out cleanly and keeps its perfect shape without sticking.

Step 2: Mix the Dry Ingredients

In a large bowl, whisk together the flour, sugar, baking soda, and salt to distribute everything evenly. This step is crucial for ensuring your cake bakes uniformly and develops that signature tender crumb.

Step 3: Create the Chocolate Mixture

In a medium saucepan, combine the 1 cup of salted butter, 1 cup water, and ¼ cup cocoa powder. Heat over medium until it just starts to boil, then remove the pan from heat and let it rest for 2 minutes. This step allows the chocolate to bloom perfectly, delivering deep flavor in your batter.

Step 4: Combine Wet and Dry

Pour your warm chocolate mixture into the dry ingredients and stir gently but thoroughly until combined. Then, fold in the sour cream, vanilla extract, and whisked eggs until your batter is smooth and glossy—this is the foundation of your lush Mississippi mud cake.

Step 5: Bake the Cake

Pour the batter into the prepared pan and bake for 18-20 minutes. At around 15 minutes, start preparing the icing. The cake is ready when a toothpick inserted in the center comes out clean or with just a few moist crumbs attached.

Step 6: Add the Marshmallow Topping

Once the cake is out of the oven, immediately sprinkle the mini marshmallows evenly across the surface. Place the pan under the broiler for about 1 minute to lightly toast and melt the marshmallows, creating that irresistibly gooey top layer.

Step 7: Make the Chocolate Icing

For the frosting, gently melt ½ cup of butter in a saucepan over low heat. Stir in ⅓ cup cocoa powder until smooth and simmering lightly. Remove from heat and whisk in milk, vanilla, and salt carefully to combine. Next, incorporate the sifted powdered sugar slowly, adjusting with extra sugar or milk to reach your desired consistency. Optionally fold in chopped pecans for texture and flavor.

Step 8: Frost the Cake

Pour the chocolate icing immediately over the marshmallow-covered cake, then gently spread it out evenly before it starts to harden. This creates a shiny, luscious finish that makes the cake look as delightful as it tastes.

Step 9: Cool and Serve

Allow your Easy Mississippi Mud Cake Recipe to cool completely before slicing it into generous squares. The cooling phase helps the icing set just right, so each bite is perfectly fudgy and gooey.

How to Serve Easy Mississippi Mud Cake Recipe

A large rectangular tray holds a thick layer of chocolate dessert with a textured surface full of small, round marshmallow pieces covered in a shiny, smooth chocolate glaze. One square piece has been removed, showing a dense, dark brown inside beneath the chocolate marshmallow topping. A metal spatula lifts the cut square inside the tray. To the upper right, on a white plate, a square piece of the dessert rests next to scattered small white marshmallows. The scene is set on a white marbled surface with a white plate and gold fork partially visible in the lower left corner. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

Add a sprinkle of extra chopped pecans or a dusting of cocoa powder to elevate the presentation. Fresh berries also add a vibrant contrast that pairs surprisingly well with the rich chocolate.

Side Dishes

Serve this cake alongside a scoop of vanilla ice cream or a dollop of whipped cream. A cup of strong coffee or hot chocolate complements it perfectly, enhancing the decadent experience.

Creative Ways to Present

For gatherings, consider serving the cake in individual glass jars with layers of whipped cream or pudding to create personalized Mississippi Mud Cake parfaits. You could also stack smaller squares to make a layered dessert tower that’s sure to impress guests.

Make Ahead and Storage

Storing Leftovers

This cake stays moist and flavorful for several days when stored in an airtight container at room temperature. Keep it away from heat or sunlight to maintain that perfect gooey texture.

Freezing

You can freeze individual slices wrapped tightly in plastic wrap and foil. Thaw them in the fridge overnight for a convenient treat any time. Note that the marshmallow topping may lose some texture after freezing but still tastes delicious.

Reheating

Warm slices gently in the microwave for about 15-20 seconds to melt the chocolate and revive the luscious, gooey experience of the fresh cake. Avoid overheating to prevent drying out the cake.

FAQs

Can I use different nuts in this cake?

Absolutely! While pecans are traditional, walnuts or almonds work wonderfully and add their own delicious crunch to the frosting. You can also omit nuts entirely if preferred.

Is there a gluten-free version of this cake?

Yes, you can substitute the all-purpose flour with a gluten-free baking mix. Just make sure the blend you use contains xanthan gum or a similar binder for the best texture.

Can I make this cake dairy-free?

With some ingredient swaps, yes! Use dairy-free butter substitutes, plant-based milk, and dairy-free sour cream alternatives. The flavor may vary slightly, but it will still be a wonderful cake.

What if I don’t have a broiler to toast the marshmallows?

You can carefully use a kitchen torch to toast the marshmallows, or place the cake under a very hot oven setting for a brief moment while watching closely. Otherwise, the gooey marshmallow topping is delightful even without toasting.

Can I double the recipe for a larger cake?

Definitely! Just be sure to use a larger pan or two pans, and adjust baking time accordingly. More batter will require a longer bake, so test with a toothpick until done.

Final Thoughts

This Easy Mississippi Mud Cake Recipe is truly one of those rare desserts that is both decadent and approachable, perfect for impressing friends or simply indulging yourself on a cozy day. Its combination of moist chocolate cake, gooey marshmallows, and rich frosting is an absolute winner every time. I can’t wait for you to give this recipe a try and enjoy every decadent bite as much as I do.

Easy Mississippi Mud Cake Recipe

Ingredients You'll Need