Mississippi Mud Brownies Recipe (2024)

February 19, 2018 by Jocelyn (Grandbaby Cakes) · Updated October 31, 2023

These decadent, moist and oh so chocolatey Mississippi Mud Brownies get even more love with the addition of marshmallows, chocolate frosting and pecans!

My people are from Mississippi. In fact, my big mama and big daddy are still in Winona, MS, and they have absolutely no plans on ever leaving. There is something so special about visiting Mississippi for me. My childhood memories of the wide open country come flooding back to me. Trips up the street to the Piggly Wiggly for grits and flour made me feel safe. These brownies are an amazing ode to those times I visited and my Mississippi roots.

This recipe comes from my friend Elizabeth Heiskell, also a Today Show contributor, and her recently published cookbook “What Can I Bring? Southern Food for Any Occasion Life Serves Up”.

Perks and Highlights of the Best Mississippi Mud Brownies

Cuisine Inspiration: Southern American

Primary Cooking Method: Baking

Dietary Info: Vegetarian

Key Flavor: Decadently Chocolate

Skill Level: Intermediate

Sweet Highlights:

• Chocolate Galore: With a chocolate brownie base and a rich chocolate frosting, this dessert is a chocoholic’s dream come true.
• Southern Charm: The recipe oozes Southern charm and hospitality
• Perfect for Parties: With its impressive layers and decadent taste, Mississippi Mud Brownies are a crowd-pleaser, ideal for gatherings and celebrations.

Ingredients

Brownies:

• Chopped Unsweetened Chocolate: We’re going all-in with a rich and robust chocolate flavor.
• Butter: It adds that rich melt-in-your-mouth flavor.
• Granulated Sugar: This balances out the rich chocolate.
• Large Eggs: They’re like the glue holding our brownie ingredients.
• All-Purpose Flour: The foundation of our brownie building, giving it structure.
• Toasted Pecans: These bring a nutty crunch and an extra layer of flavor.
• Miniature Marshmallows: These pillows of sweetness melt into a gooey layer of perfection.

Chocolate Frosting:

• Butter: Adds our creaminess
• Milk: Smooths it all out
• Cocoa: Bringing in that chocolatey depth
• Powdered Sugar: It’s sweet, it’s smooth, and it’s here to make that frosting utterly irresistible.
• Vanilla Extract: Adds a subtle complexity to the mix.

How to Make Mississippi Mud Brownies

Prepare the Brownies:

• Heat: Get that oven cranked up to a cozy 350 F.
• Melt and Mix: In a spacious microwave-safe bowl, give the chocolate and butter a good nuke until they’re happily melted together. Stir every 30 seconds to keep things smooth.
• Whisk: Time for sugar and eggs to join the party, whisk them in until they’re fully part of the gang.
• Flour: Gently fold in the flour until it’s just right.
• Spread: Pour that gorgeous batter into a greased 13- x 9-inch baking dish, ready for action.
• Bake and Sprinkle: Let it bake for 25 to 30 minutes, or until a wooden pick plays the part of the tester and comes out with just a few moist crumbs. Straight out of the oven, hit it up with those toasted pecans and mini marshmallows.

Whip Up the Chocolate Frosting:

• Butter, Milk, and Cocoa Trio: In a large saucepan, cook these three amigos over a medium flame, stirring non-stop until the butter has completely melted.
• Sweet and Smooth: Off the heat, grab your electric mixer and beat in the powdered sugar and vanilla until everything’s looking smooth and luscious.
• Pour and Spread: Unleash that chocolatey goodness over the pecans and marshmallows, spreading it all the way to the edges.
• Cool and Cut: Give it an hour on a wire rack to chill out, then cut into squares and dive in!

How to Store

Once they’ve cooled down and been cut into squares, you can keep them fresh at room temperature for up to three days. Just make sure to place them in an airtight container or cover them snugly with plastic wrap to keep them from drying out. They last longer in the fridge for about a week. Just bring them back to room temperature before serving, or give them a quick zap in the microwave if you can’t wait and want a gooey, warm treat!

I store other brownies like my favorite Chewy Brownies, Cosmic Brownies and my Turtle Brownies the same way.

Favorite Mississipi Recipes to Try

• Mississippi Mud Cookies
• Mississippi Mud Pie