Mississippi Mud Pie Recipe

Decadent, nostalgic, and unapologetically rich, Mississippi Mud Pie is a chocolate lover’s dream layered right in a pie pan. This American classic boasts a buttery Oreo crust, a moist and fudgy brownie filling, billowy chocolate mousse, clouds of chocolate whipped cream, and a final flourish of crisp cookie crumbles. With every bite, you’ll experience a parade of textures and deep cocoa flavors that feel like a warm embrace and a celebratory treat all in one. Whether you’re baking for a special occasion or simply want the ultimate chocolate dessert, Mississippi Mud Pie delivers a one-two punch of joy and indulgence.

Ingredients You’ll Need

Mississippi Mud Pie only looks elaborate, but the magic comes from a handful of familiar favorites—Oreos, chocolate, cream, and cocoa—each adding their own special flair. Every ingredient plays a deliberate role, from building layers of flavor to crafting that irresistible, mudslide-on-a-plate effect.

• 25 Oreo cookies: The foundation of your crust—expect big chocolate crunch and signature flavor.
• 6 Tablespoons salted butter (melted): Holds the Oreo crust together with rich, salty creaminess.
• 4 ounces bittersweet chocolate (chopped): Adds depth and intensity to the fudgy brownie layer.
• 3 Tablespoons salted butter (melted): Combines with chocolate for ultra-smooth batter.
• 3 Tablespoons vegetable oil: Keeps the brownie moist and soft, even after chilling.
• 2 Tablespoons unsweetened cocoa powder: Pumps up the chocolate flavor without added sweetness.
• 2/3 cup light brown sugar: Lends fudgy chew and a subtle caramel note to the brownies.
• 2 large eggs: The key to binding and creating a brownie layer that stays glorious and gooey.
• 2 teaspoons vanilla extract: Balances the chocolate and adds aromatic warmth.
• 1/4 teaspoon salt: Wakes up every other flavor in the pan.
• 3 Tablespoons all-purpose flour: Just enough for structure, but not so much that your brownie layer loses its fudge factor.
• 8 Oreo cookies: For that crunchy, chocolatey topping.
• 2 Tablespoons powdered sugar: Sweetens the cookie topping just right.
• 1 Tablespoon dutch-processed cocoa powder: Deepens the chocolatey color and flavor in the topping.
• Pinch of salt: Elevates the cocoa and balances sweetness.
• 2 Tablespoons salted butter (melted): Helps the cookie topping crisp up in the oven.
• 6 ounces milk chocolate, (chopped): The star of the creamy chocolate mousse layer.
• 1 cup cold heavy cream: Ensures whipped mousse is light and airy.
• 2 Tablespoons dutch-processed cocoa powder: Makes the mousse especially intense and chocolatey.
• 2 Tablespoons powdered sugar: Adds just enough sweetness to your mousse.
• Pinch of salt: Because chocolate always loves a bit of salt.
• 1 cup heavy cream: The fluffy topper—real whipped cream is non-negotiable.
• 1/4 cup granulated sugar: Sweetens the cloud-like finish.
• 3 Tablespoons unsweetened cocoa powder: The secret to a deep, chocolate-whipped crown on your pie.

How to Make Mississippi Mud Pie

Step 1: Prepare the Oreo Crust

Transform those Oreos into fine crumbs using a food processor, or, if you love a little kitchen fun, toss them in a ziplock bag and crush them with a rolling pin. Mix the crumbs with melted butter until they’re evenly moistened, then press into a 9-inch pie plate. A measuring cup helps smooth out the base and up the sides. Bake at 325°F for 12 to 15 minutes, just until the crust sets and smells intensely chocolatey.

Step 2: Create the Fudgy Brownie Layer

In a microwave-safe bowl, gently heat bittersweet chocolate, more butter, oil, and cocoa powder in 20-second bursts, stirring until smooth and glossy. Add brown sugar, eggs, vanilla, and salt—whisk until shiny and fully combined. Stir in flour last for a thick batter. Pour onto the cooled Oreo crust, then bake at 325°F for 25 to 30 minutes. You’re aiming for barely set edges and a gooey center—180°F on a thermometer or just a trace of wet batter on your toothpick means muddy perfection.

Step 3: Bake the Cookie Crumble Topping

Crush 8 Oreos just enough for chunky pieces. Toss them with powdered sugar, dutch cocoa, a pinch of salt, and melted butter until evenly coated. Spread on a lined baking sheet and bake at 325°F for 10 minutes until crisp. This simple step adds an extra punch of chocolate flavor and wonderful texture. Let it cool completely before using—it’ll be irresistible not to sample ahead of time!

Step 4: Whip Up the Mousse Layer

Get out your favorite mixing bowls! Gently melt milk chocolate in 20-second bursts, stirring well between each, then let it cool until barely warm. In another bowl, whip heavy cream with dutch cocoa, powdered sugar, and a pinch of salt just until soft peaks form. Lighten the cooled chocolate by folding in a third of this whipped cream, then gently fold in the rest—keep it light! Smooth the mousse over the completely cooled brownie layer, cover, and chill the pie for at least 3 hours or overnight.

Step 5: Finish with Chocolate Whipped Cream and Cookie Topping

Before serving, whip heavy cream with granulated sugar and cocoa powder until stiff peaks form. Spread a generous cloud over your set mousse. Finally, scatter that delicious cookie crumble on top. Your Mississippi Mud Pie is spectacular and totally irresistible, with every layer showing off.

How to Serve Mississippi Mud Pie

Garnishes

A few well-chosen garnishes can take your Mississippi Mud Pie from homey to party-ready. Sprinkle extra cookie crumbs, chocolate curls, or a dusting of cocoa powder just before serving. A drizzle of warm fudge sauce or a sprinkle of sea salt flakes will make every slice feel extra-special. For true wow-factor, add a swirl of whipped cream or even a cherry on top—retro charm is always in style!

Side Dishes

Since the pie is indulgently rich, serve it alongside a scoop of vanilla ice cream, a handful of fresh raspberries, or even a glass of cold milk (for the purists among us). A cup of hot coffee or espresso beautifully cuts the luscious chocolate for adults. Keep sides simple and let Mississippi Mud Pie be the star.

Creative Ways to Present

Don’t be afraid to have some fun! Slice and serve from the pie plate for classic comfort, or cut into small squares for a dessert buffet. Miniature pies or parfaits in clear glasses let you show off those gorgeous layers. For your next celebration, try serving with sparklers or candles—Mississippi Mud Pie makes every occasion feel like a party.

Make Ahead and Storage

Storing Leftovers

Cover your Mississippi Mud Pie snugly with plastic wrap or foil and refrigerate. It keeps beautifully for up to 4 days, staying just as luscious with each passing slice. The cookie topping may soften slightly, but a quick sprinkle of fresh cookie crumbs before serving will revive any lost crunch.

Freezing

Great news for planners and treat hoarders: this pie freezes wonderfully. Wrap the entire pie (or individual slices) in several layers of plastic and foil, then freeze for up to 2 months. Thaw slowly in the fridge overnight for best texture. It’s best to add whipped cream and topping fresh after thawing, but you can freeze with the mousse already layered.

Reheating

Mississippi Mud Pie is meant to be enjoyed cold or at room temperature for maximum flavor and creamy texture. If you love a warm brownie layer, you can briefly microwave individual slices (10-15 seconds), but be careful—it’ll melt the mousse and whipped cream. For the true experience, let the pie sit at room temp for about 20 minutes before serving.

FAQs

Can I make Mississippi Mud Pie in advance?

Absolutely—the pie actually gets better after a night in the fridge! All the flavors meld and the layers set perfectly, making Mississippi Mud Pie an ideal dessert to prep ahead for gatherings or holidays.

What can I substitute for Oreos?

If you’re out of Oreos or prefer something different, use any crisp chocolate wafer cookies for the crust and topping. Just make sure they’re chocolatey and not too sweet. A homemade chocolate shortbread works, too!

Can I use semi-sweet chocolate instead of bittersweet or milk chocolate?

Yes, you can—just keep in mind your pie will be a bit sweeter. Try to use good-quality chocolate for a truly rich, satisfying taste in each layer of your Mississippi Mud Pie. Mixing different chocolates can also add complexity!

How do I cut neat slices?

For picture-perfect slices, chill the pie thoroughly before cutting. Use a sharp knife dunked in hot water and wiped dry between cuts; this helps the blade glide through each layer for clean, beautiful pieces.

Can I make this pie gluten free?

Yes! Swap in gluten-free chocolate sandwich cookies in place of the Oreos and use a gluten-free all-purpose flour blend for the brownie layer. Every luxurious, chocolatey bite will still be completely irresistible.

Final Thoughts

If you’re searching for a dessert that wows at the table and fills hearts as much as bellies, Mississippi Mud Pie is your answer. Each bite is a throwback to childhood treats and an embrace of chocolate bliss. Give it a try, share it with friends, and watch it disappear in record time!

Print