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Ultimate Mississippi Mud Brownies That Melt in Your Mouth Recipe

4.9 from 68 reviews

Indulge in the Ultimate Mississippi Mud Brownies, a rich and fudgy chocolate dessert layered with gooey marshmallows and a creamy cocoa frosting. These brownies are moist, decadent, and melt effortlessly in your mouth, perfect for any chocolate lover’s cravings.

Ingredients

Scale

Brownie Batter

  • 1 cup unsweetened cocoa powder
  • 1/2 cup oil
  • 1/2 cup unsalted butter, softened
  • 1 cup granulated sugar
  • 4 large eggs
  • 1 teaspoon vanilla extract
  • 1 cup all-purpose flour
  • 1/2 teaspoon salt

Topping and Frosting

  • 2 cups mini marshmallows
  • 1/2 cup melted butter
  • 1/4 cup unsweetened cocoa powder
  • 1/4 cup evaporated milk
  • 1 teaspoon vanilla extract
  • 3 cups powdered sugar

Instructions

  1. Preheat Oven and Prepare Pan: Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking pan with non-stick cooking spray to ensure the brownies don’t stick.
  2. Mix Cocoa and Oil: In a large mixing bowl, whisk together the 1 cup of unsweetened cocoa powder and 1/2 cup of oil until the mixture is smooth and well combined.
  3. Add Butter and Sugar: Add the softened 1/2 cup butter to the cocoa-oil mixture and blend until creamy. Then, mix in 1 cup of granulated sugar thoroughly for sweetness and texture.
  4. Incorporate Eggs and Vanilla: Add 4 large eggs one at a time, beating well after each addition to create a rich and smooth batter. Stir in 1 teaspoon vanilla extract to enhance the chocolate flavor.
  5. Add Dry Ingredients: Gently fold in 1 cup of all-purpose flour and 1/2 teaspoon salt, careful not to overmix to maintain a tender crumb.
  6. Bake the Brownies: Pour the batter evenly into the prepared 9×13 pan and bake for 25 to 30 minutes until a toothpick inserted comes out with moist crumbs.
  7. Add Marshmallows: Remove the brownies from the oven and immediately sprinkle 2 cups of mini marshmallows evenly on top. Return to the oven for an additional 2 to 3 minutes until marshmallows are slightly melted and puffed.
  8. Cool Completely: Allow the brownies to cool completely in the pan to set properly before frosting.
  9. Prepare Frosting: In a bowl, combine 1/2 cup melted butter, 1/4 cup unsweetened cocoa powder, 1/4 cup evaporated milk, and 2 cups powdered sugar. Mix until smooth.
  10. Adjust Frosting Consistency: Gradually add the remaining powdered sugar (up to 1 cup) until the frosting reaches your desired thickness for spreading.
  11. Frost the Brownies: Spread the creamy frosting evenly over the cooled brownies for a luscious finish.
  12. Serve: Cut into squares and serve these melt-in-your-mouth Ultimate Mississippi Mud Brownies to delight friends and family.

Notes

  • Be careful not to overmix the batter to keep brownies tender.
  • Use unsalted butter for better control of saltiness.
  • Ensure brownies are completely cool before frosting to prevent melting.
  • Mini marshmallows can be substituted with regular size, but adjust quantity accordingly.
  • To enhance fudginess, slightly underbake the brownies, checking with a toothpick.

Keywords: Mississippi Mud Brownies, chocolate brownies, gooey brownies, marshmallow brownies, chocolate frosting, easy brownie recipe