Indulge in the ultimate chocolate dessert with this Mississippi Mud Pie recipe! Featuring a rich Oreo crust, gooey brownie, creamy chocolate mousse, and fluffy whipped cream, this decadent treat is perfect for parties, holidays, or any special occasion. Learn how to make this show-stopping dessert with easy-to-follow steps, tips for perfect layers, and delicious variations. Whether you’re a chocolate lover or looking for an impressive dessert, this Mississippi Mud Pie will wow your taste buds and guests alike. Ideal for gatherings, this make-ahead recipe is a must-try for anyone who adores layered chocolate desserts

Ingredients
For the Crust:
- 25 Oreo cookies, finely crushed
- 6 tablespoons salted butter, melted
For the Brownie Layer:
- 4 ounces bittersweet chocolate, chopped
- 3 tablespoons salted butter, melted
- 3 tablespoons vegetable oil
- 2 tablespoons unsweetened cocoa powder
- 2/3 cup light brown sugar
- 2 large eggs
- 2 teaspoons vanilla extract
- 1/4 teaspoon salt
- 3 tablespoons all-purpose flour
For the Cookie Topping:
- 8 Oreo cookies, roughly crushed
- 2 tablespoons powdered sugar
- 1 tablespoon Dutch-processed cocoa powder
- Pinch of salt
- 2 tablespoons salted butter, melted
For the Mousse Layer:
- 6 ounces milk chocolate, chopped
- 1 cup cold heavy cream
- 2 tablespoons Dutch-processed cocoa powder
- 2 tablespoons powdered sugar
- Pinch of salt
For the Chocolate Whipped Cream:
- 1 cup heavy cream
- 1/4 cup granulated sugar
- 3 tablespoons unsweetened cocoa powder
Instructions
For the Crust:
- Preheat the oven to 325°F (165°C). Finely crush the Oreo cookies using a food processor or by placing them in a ziplock bag and crushing with a rolling pin.
- Mix the crushed cookies with melted butter until evenly moistened. Press the mixture into a 9-inch pie plate, forming an even layer along the bottom and sides.
- Bake for 12-15 minutes until set. Remove from the oven and let it cool.
For the Brownie Layer:
- In a microwave-safe bowl, heat the bittersweet chocolate, butter, oil, and cocoa powder in 20-second intervals, stirring between each, until melted and smooth.
- Add the brown sugar, eggs, vanilla, and salt to the melted chocolate mixture. Whisk until fully combined.
- Stir in the flour until just incorporated. Pour the brownie batter into the cooled Oreo crust.
- Bake for 25-30 minutes, or until a toothpick inserted into the center comes out slightly wet with batter. For accuracy, use an instant-read thermometer; the brownie layer should reach 180°F (82°C). Let it cool completely.
For the Cookie Topping:
- Roughly crush the Oreo cookies in a ziplock bag.
- Toss the crushed cookies with powdered sugar, cocoa powder, and a pinch of salt. Drizzle melted butter over the mixture and stir until evenly coated.
- Spread the cookie mixture onto a parchment-lined baking sheet and bake at 325°F (165°C) for 10 minutes. Let cool completely.
For the Mousse Layer:
- Melt the milk chocolate in a microwave-safe bowl, heating in 20-second bursts and stirring between each until smooth. Let the melted chocolate cool to 90-100°F (32-37°C).
- In a large bowl, beat the heavy cream, cocoa powder, powdered sugar, and salt with an electric mixer until soft peaks form.
- Gently fold one-third of the whipped cream into the cooled melted chocolate. Then fold in the remaining whipped cream until fully combined.
- Spread the mousse evenly over the cooled brownie layer. Chill the pie in the refrigerator for at least 3 hours or overnight.
For the Chocolate Whipped Cream:
- In a cold mixing bowl, beat the heavy cream, granulated sugar, and cocoa powder until stiff peaks form.
- Spread the whipped cream over the chilled mousse layer. Sprinkle the cooled cookie topping over the whipped cream.
- Chill until ready to serve.
Why You’ll Love This Recipe
- Multiple Textures: A crunchy crust, gooey brownie, airy mousse, and fluffy whipped cream.
- Rich Chocolate Flavor: Perfect for chocolate lovers.
- Impressive Presentation: Layers create a show-stopping dessert.
- Make-Ahead Friendly: Ideal for parties and gatherings.

Tips
- Chill Between Layers: Ensure each layer is completely cool before adding the next.
- Crust Options: Substitute the Oreo crust with a graham cracker crust if preferred.
- Thermometer Check: Use a thermometer for perfect brownie consistency.
- Even Layers: Use an offset spatula for smooth mousse and whipped cream layers.
Variations and Substitutions
- Gluten-Free: Use gluten-free Oreo cookies and brownie mix.
- Dark Chocolate Lovers: Substitute milk chocolate with dark chocolate in the mousse.
- Nutty Twist: Add chopped pecans or walnuts to the brownie batter.
- Coffee Infusion: Add a teaspoon of espresso powder to the mousse for a mocha flavor.
FAQs
Q: Can I use store-bought whipped cream?
A: Yes, but homemade whipped cream provides a fresher taste and better texture.
Q: How long does this pie keep?
A: Store in the refrigerator for up to 3 days, covered tightly with plastic wrap.
Q: Can I freeze this pie?
A: Freezing is not recommended as the mousse layer may lose its texture when thawed.
Serving and Suggestions
- Serve chilled with a drizzle of chocolate syrup for extra indulgence.
- Garnish with fresh berries for a pop of color and tartness.
- Pair with a scoop of vanilla ice cream for an ultimate dessert experience.
Enjoy this rich, layered Mississippi Mud Pie that’s sure to impress and satisfy your sweet tooth!
Mississippi Mud Pie Recipe
12
servings30
minutes45
minutesIngredients
For the Crust:
25 Oreo cookies, finely crushed
6 tablespoons salted butter, melted
For the Brownie Layer:
4 ounces bittersweet chocolate, chopped
3 tablespoons salted butter, melted
3 tablespoons vegetable oil
2 tablespoons unsweetened cocoa powder
2/3 cup light brown sugar
2 large eggs
2 teaspoons vanilla extract
1/4 teaspoon salt
3 tablespoons all-purpose flour
For the Cookie Topping:
8 Oreo cookies, roughly crushed
2 tablespoons powdered sugar
1 tablespoon Dutch-processed cocoa powder
Pinch of salt
2 tablespoons salted butter, melted
For the Mousse Layer:
6 ounces milk chocolate, chopped
1 cup cold heavy cream
2 tablespoons Dutch-processed cocoa powder
2 tablespoons powdered sugar
Pinch of salt
For the Chocolate Whipped Cream:
1 cup heavy cream
1/4 cup granulated sugar
3 tablespoons unsweetened cocoa powder
Directions
- For the Crust:
- Preheat the oven to 325°F (165°C). Finely crush the Oreo cookies using a food processor or by placing them in a ziplock bag and crushing with a rolling pin.
- Mix the crushed cookies with melted butter until evenly moistened. Press the mixture into a 9-inch pie plate, forming an even layer along the bottom and sides.
- Bake for 12-15 minutes until set. Remove from the oven and let it cool.
- For the Brownie Layer:
- In a microwave-safe bowl, heat the bittersweet chocolate, butter, oil, and cocoa powder in 20-second intervals, stirring between each, until melted and smooth.
- Add the brown sugar, eggs, vanilla, and salt to the melted chocolate mixture. Whisk until fully combined.
- Stir in the flour until just incorporated. Pour the brownie batter into the cooled Oreo crust.
- Bake for 25-30 minutes, or until a toothpick inserted into the center comes out slightly wet with batter. For accuracy, use an instant-read thermometer; the brownie layer should reach 180°F (82°C). Let it cool completely.
- For the Cookie Topping:
- Roughly crush the Oreo cookies in a ziplock bag.
- Toss the crushed cookies with powdered sugar, cocoa powder, and a pinch of salt. Drizzle melted butter over the mixture and stir until evenly coated.
- Spread the cookie mixture onto a parchment-lined baking sheet and bake at 325°F (165°C) for 10 minutes. Let cool completely.
- For the Mousse Layer:
- Melt the milk chocolate in a microwave-safe bowl, heating in 20-second bursts and stirring between each until smooth. Let the melted chocolate cool to 90-100°F (32-37°C).
- In a large bowl, beat the heavy cream, cocoa powder, powdered sugar, and salt with an electric mixer until soft peaks form.
- Gently fold one-third of the whipped cream into the cooled melted chocolate. Then fold in the remaining whipped cream until fully combined.
- Spread the mousse evenly over the cooled brownie layer. Chill the pie in the refrigerator for at least 3 hours or overnight.
- For the Chocolate Whipped Cream:
- In a cold mixing bowl, beat the heavy cream, granulated sugar, and cocoa powder until stiff peaks form.
- Spread the whipped cream over the chilled mousse layer. Sprinkle the cooled cookie topping over the whipped cream.
- Chill until ready to serve.



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