Here’s a rich, fudgy Mississippi Mud Cake recipe—loaded with chocolate, marshmallows, and a gooey frosting. A true Southern classic 🍫
Mississippi Mud Cake
Servings: 12–16
Prep: 15 min | Bake: 30–35 min
Ingredients
Cake
- 1 cup unsalted butter
- ½ cup cocoa powder
- 4 large eggs
- 2 cups sugar
- 1½ cups all-purpose flour
- 1 tsp vanilla extract
- 1 cup chopped pecans or walnuts (optional)
Topping
- 3 cups mini marshmallows
Frosting
- ½ cup butter
- ¼ cup cocoa powder
- ⅓ cup milk
- 1 tsp vanilla extract
- 3½–4 cups powdered sugar
Instructions
- Preheat oven: 350°F (175°C). Grease a 9×13-inch baking pan.
- Make cake batter:
- Melt butter in a saucepan, stir in cocoa powder until smooth.
- In a bowl, beat eggs and sugar until combined.
- Add cocoa mixture and vanilla; mix well.
- Stir in flour and nuts (if using).
- Bake:
- Pour batter into pan and bake 30–35 minutes, until set but still fudgy.
- Add marshmallows:
- Remove cake from oven and immediately sprinkle marshmallows on top.
- Return to oven for 3–5 minutes until marshmallows puff up.
- Make frosting:
- In a saucepan, melt butter with cocoa and milk.
- Remove from heat, stir in vanilla and powdered sugar until smooth.
- Finish:
- Pour warm frosting over marshmallows.
- Spread gently and let set before cutting.
Tips & Variations
- Extra gooey: Slightly underbake the cake by 2 minutes.
- No nuts: Leave them out—still amazing.
- Cupcake version: Bake in muffin tins for 18–20 minutes.
- Serve warm: Amazing with vanilla ice cream.
If you want, I can also give you a one-bowl Mississippi mud cake, a mud brownie version, or a sheet-pan shortcut recipe.