Mississippi Mud Pie Recipe

If you’ve never tasted the gooey, chocolate bliss that is a Mississippi Mud Pie, you’re in for a life-changing treat! This is the ultimate dessert for chocolate lovers, with rich layers of fudgy brownie, creamy mousse, and crunchy cookie—every bite is decadence stacked on decadence. Whether you’re making it for a cozy family night or to dazzle guests at a celebration, this Mississippi Mud Pie brings comfort, nostalgia, and a wow-factor all at once.

Ingredients You’ll Need

This list might look a bit long, but every single ingredient for Mississippi Mud Pie plays a starring role in flavor, color, or texture. By layering simple staples, you transform pantry basics into an unforgettable showstopper!

• Oreo cookies: Used for both the crust and the cookie topping, they give rich chocolate flavor and a delightful crunch.
• Salted butter: Melts into the Oreos for that luscious, salty-sweet base and adds richness to every chocolate layer.
• Bittersweet chocolate: Acts as the deep, decadent anchor for the brownie layer, balancing the pie’s overall sweetness.
• Vegetable oil: Keeps the brownie layer extra moist and fudgy—never dry!
• Unsweetened cocoa powder: Intensifies chocolate flavor in both the brownie and whipped cream layers, ensuring that classic color and depth.
• Light brown sugar: Adds caramel-like notes to the brownie, creating that irresistible, chewy texture.
• Eggs: Essential for binding and creating the brownie’s structure—choose large, fresh eggs for best results.
• Vanilla extract: Rounds out the chocolate with warm, comforting undertones.
• Salt: Just a pinch sharpens flavors and keeps the sweetness balanced.
• All-purpose flour: A small but essential amount to give the brownie just enough lift and body.
• Powdered sugar: Provides sweetness and a smooth finish for the cookie topping and mousse layer.
• Dutch-processed cocoa powder: This creates a deep, dark layer in the mousse and topping, elevating both flavor and appeal.
• Milk chocolate: Makes the mousse luscious, light, and oh-so-creamy.
• Heavy cream: Whips into peaks for the mousse and the final whipped cream topping—essential for that billowy finish.
• Granulated sugar: Sweetens the whipped cream and keeps the texture dreamily soft.

Variations

One of the best things about Mississippi Mud Pie is how easily you can tailor it to suit your favorites or dietary needs. Don’t be afraid to get creative—make this recipe your own!

• Peanut Butter Swirl: Add a few dollops of creamy peanut butter to the brownie batter before baking, then gently swirl for a decadent twist.
• Gluten-Free Option: Substitute gluten-free chocolate sandwich cookies and a 1:1 gluten-free flour blend to keep all the indulgence without the gluten.
• Extra Nutty: Sprinkle chopped toasted pecans or walnuts on top of the mousse layer for a Southern-inspired crunch.
• Espresso Kick: Mix a teaspoon of instant espresso powder into the brownie batter to intensify the chocolate flavor.

How to Make Mississippi Mud Pie

Step 1: Make the Oreo Crust

Start by preheating your oven to 325°F. Crush 25 Oreo cookies until your crumbs are fine—this is easiest with a food processor, but a sturdy ziplock bag and rolling pin work as well. Mix the crumbs with melted salted butter until everything is evenly moistened, then press this mixture into the bottom and up the sides of a 9-inch pie plate. Bake for about 12-15 minutes, just until set; a crisp, sturdy base makes all the difference!

Step 2: Prepare the Brownie Layer

In a microwave-safe bowl, gently melt together the bittersweet chocolate, more salted butter, vegetable oil, and cocoa powder by heating in 20-second bursts, stirring between each. Once melted and smooth, whisk in the brown sugar, eggs, vanilla, and salt. Stir in the flour last for that classic, fudgy texture. Pour the brownie batter right into your baked crust, spreading evenly. Bake for 25-30 minutes—when a toothpick comes out with just a little batter clinging, you’re good.

Step 3: Bake and Cool the Cookie Topping

Roughly crush 8 more Oreos—these should be chunkier than your crust crumbs for texture. Toss them in a bowl with powdered sugar, Dutch-processed cocoa, a pinch of salt, and melted butter until evenly coated. Spread on a parchment-lined baking sheet and bake at 325°F for 10 minutes. Cool completely; this cookie crunch goes on top of your pie right before serving for maximum contrast.

Step 4: Whip Up the Chocolate Mousse

Melt the milk chocolate in a large bowl using 20-second bursts in the microwave, stirring until smooth. Let cool to about 90-100°F so your whipped cream won’t deflate. In a separate bowl, beat heavy cream with Dutch-processed cocoa, powdered sugar, and salt until it forms soft peaks. Stir a third of this whipped cream into the cooled chocolate, then gently fold in the rest. This mousse layer gets spread onto the cooled brownie layer, and the whole pie goes into the fridge for at least 3 hours to set up and get irresistibly creamy.

Step 5: Make the Chocolate Whipped Cream

Just before serving, whip more heavy cream with granulated sugar and cocoa powder until stiff and pillowy. Spread this fluffy topping over the chilled mousse, and finish with that cookie topping from earlier. Each bite should look as beautiful and inviting as it tastes!

How to Serve Mississippi Mud Pie

Garnishes

For that ultimate bakery-style finish, extra cookie crumbs, mini chocolate chips, or a delicate dusting of cocoa powder instantly elevate your Mississippi Mud Pie. A few chocolate curls or a sprinkle of flaky sea salt are equally stunning, both in taste and in presentation—get playful and make it your own!

Side Dishes

A slice of this pie is definitely the star of the show, but if you want to go all out, a scoop of cold vanilla ice cream is unbeatable. Fresh berries—like raspberries or strawberries—add a burst of color and a tart contrast that brightens all that chocolate. For a truly decadent spread, serve alongside espresso or a bold cup of coffee.

Creative Ways to Present

Try serving Mississippi Mud Pie in individual mason jars or glasses for a party-friendly, grab-and-go dessert. Cut the pie into small squares for a dessert buffet, or dress up each plate with a drizzle of chocolate sauce and fresh berries—guests will swoon!

Make Ahead and Storage

Storing Leftovers

Any leftovers of Mississippi Mud Pie (if you’re lucky enough to have some!) keep beautifully in the fridge. Simply cover the pie plate tightly with plastic wrap; it’ll stay dreamy for up to 3 days—though it rarely lasts that long at my house.

Freezing

This pie freezes better than most! For best results, freeze the pie before you add the whipped cream and cookie topping. Wrap slices tightly in two layers of plastic wrap and a layer of foil, then freeze for up to 2 months. Thaw overnight in the fridge to keep the mousse layer velvety.

Reheating

Mississippi Mud Pie is meant to be enjoyed cold or at room temperature, so no reheating required! If frozen, just let it thaw gently in the refrigerator, then finish with whipped cream and your choice of toppings before serving.

FAQs

Final Thoughts

There’s just something joyful about a slice of homemade Mississippi Mud Pie—the laughter when you serve it, the silence when everyone digs in, and the memories you’re sure to make along the way. If you adore chocolate (or know someone who does), dive in and give this recipe a try. Your next celebration—or cozy evening—deserves a pie this sumptuous!

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