Introduction

These Ultimate Mississippi Mud Brownies are rich, fudgy, and melt in your mouth with every bite. Packed with gooey marshmallows and topped with a smooth chocolate frosting, they are a chocolate lover’s dream come true.

Ultimate Mississippi Mud Brownies That Melt in Your Mouth Recipe - Recipe Image

Ingredients

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

Step 1: Preheat your oven to 350°F and grease a 9×13-inch pan with non-stick cooking spray.
Step 2: In a large mixing bowl, whisk together the oil and cocoa powder until smooth.
Step 3: Add the softened butter and blend until creamy, then mix in the granulated sugar.
Step 4: Add eggs one at a time, mixing well after each addition, then stir in the vanilla extract.
Step 5: Gently fold in the flour and salt, being careful not to overmix.
Step 6: Pour the batter into the prepared pan and bake for 25 to 30 minutes.
Step 7: Remove from the oven and sprinkle mini marshmallows evenly on top; return to the oven for an additional 2 to 3 minutes until marshmallows are melted.
Step 8: Allow the brownies to cool completely in the pan.
Step 9: In a separate bowl, combine melted butter, cocoa powder, evaporated milk, and 2 cups of powdered sugar until smooth.
Step 10: Gradually add the remaining powdered sugar until the frosting reaches your desired thickness.
Step 11: Spread the frosting evenly over the cooled brownies, cut into squares, and serve.

Tips & Variations

For extra fudgy brownies, slightly underbake by 2 minutes and let them set as they cool.
Substitute mini marshmallows with chopped nuts for added crunch.
Use dark cocoa powder for a more intense chocolate flavor.
Store brownies in an airtight container to keep them moist longer.

Storage

Store these brownies in an airtight container at room temperature for up to 3 days, or refrigerate for up to a week. To reheat, warm in the microwave for 10-15 seconds to bring back their soft texture. Frosting may firm up when chilled but softens nicely when warmed.

How to Serve

Serve this delicious recipe with your favorite sides.

FAQs

Can I use regular milk instead of evaporated milk in the frosting?

Yes, you can substitute regular milk, but evaporated milk gives a creamier, richer frosting. Use slightly less milk to avoid a runny consistency.

Are these brownies gluten-free?

This recipe uses all-purpose flour, which contains gluten. To make them gluten-free, substitute with a gluten-free flour blend suitable for baking.

Ultimate Mississippi Mud Brownies That Melt in Your Mouth Recipe

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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.

Author: Zane
Prep Time: 15 minutes
Cook Time: 33 minutes
Total Time: 48 minutes
Yield: 12 servings 1x
Category: Dessert
Method: Baking
Cuisine: American

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

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.
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.
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.
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.
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.
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.
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.
Cool Completely: Allow the brownies to cool completely in the pan to set properly before frosting.
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.
Adjust Frosting Consistency: Gradually add the remaining powdered sugar (up to 1 cup) until the frosting reaches your desired thickness for spreading.
Frost the Brownies: Spread the creamy frosting evenly over the cooled brownies for a luscious finish.
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