Mississippi Mud Cake

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Step 5: Bake the Cake

  • Pour the batter into the prepared baking pan.
  • Smooth the top with a spatula.
  • Bake in the preheated oven for 35-40 minutes, or until a toothpick inserted into the center comes out mostly clean (slightly fudgy crumbs are perfect).
  • Allow the cake to cool completely in the pan.

Step 6: Prepare the Chocolate Topping

  • In a medium saucepan, melt butter over low heat.
  • Add milk and cocoa powder, stirring until smooth.
  • Gradually whisk in powdered sugar until the frosting is thick but spreadable.
  • Stir in vanilla extract.

Step 7: Assemble the Cake

  • Pour the chocolate topping evenly over the cooled cake.
  • Sprinkle miniature marshmallows evenly on top.
  • If desired, add chopped pecans or walnuts for extra texture.

Step 8: Melt the Marshmallows

  • Place the cake under a broiler for 1-2 minutes to lightly toast the marshmallows, or place in a hot oven for a few minutes.
  • Watch carefully — marshmallows burn quickly!

Step 9: Serve and Enjoy

  • Let the cake cool for a few minutes to allow the topping to set.
  • Slice into squares and serve warm.
  • Optional: Add a scoop of vanilla ice cream or a drizzle of chocolate sauce for the ultimate indulgence.

Tips for the Perfect Mississippi Mud Cake

  1. Use quality chocolate — it really makes a difference in richness.
  2. Do not overbake — the cake should remain fudgy and gooey inside.
  3. Customize the topping — try coconut flakes, caramel drizzle, or different nuts.
  4. Make it ahead — the cake tastes even better after a few hours as the flavors meld together.

Final Thoughts

Mississippi Mud Cake is more than just a dessert — it’s an experience. With its rich chocolatey layers, gooey marshmallow topping, and optional crunch from nuts, every bite is pure indulgence. Whether for a special occasion or a cozy night in, this cake is guaranteed to impress.


If you want, I can also make a shortcut version for a quicker Mississippi Mud Cake that takes under 45 minutes from start to finish without sacrificing flavor.

Do you want me to do that?

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