There’s something utterly magical about indulging in a slice of this decadent Mississippi Mud Pie Recipe. Combining a crumbly Oreo crust, fudgy brownie layer, luxuriously smooth chocolate mousse, and a crunchy cocoa crumble on top, it delivers a symphony of rich textures and deep chocolate flavors that feel like a warm hug in dessert form. Whether you’re a seasoned chocolate lover or want to impress friends with a show-stopping treat, this pie is pure comfort with a gourmet twist.
Ingredients You’ll Need
This Mississippi Mud Pie Recipe calls for simple yet essential ingredients that work in perfect harmony. Each one is carefully chosen to build layers of flavor and texture — from the luscious fudgy brownie to the creamy mousse and crisp crust.
- Oreo cookies: The foundation of the crust and crumb topping, providing buttery, chocolatey crispness.
- Granulated sugar: Adds just the right touch of sweetness to the crust blend.
- Unsalted butter: Keeps the crust rich and helps bind the layers perfectly.
- Bittersweet and milk chocolate: Offers a deep, complex chocolate flavor throughout the brownie and mousse layers.
- Vegetable oil: Moisturizes the brownie batter for that irresistible fudgy texture.
- Unsweetened cocoa powder: Intensifies the chocolate flavor in both the brownie and topping.
- Dark brown sugar: Adds a hint of molasses richness to the brownie layer.
- Large eggs: Help bind the brownie and create a tender crumb.
- Vanilla extract: Enhances all the chocolatey goodness with a warm flavor note.
- Salt: Balances the sweetness and amplifies the cake’s depth.
- All-purpose flour: Lightens the brownie just enough without sacrificing fudginess.
- Powdered sugar: Sweetens the crumb topping and the whipped cream beautifully.
- Heavy cream: For whipped layers that make the mousse divinely silky and airy.
How to Make Mississippi Mud Pie Recipe
Step 1: Prepare the Crust
Start by preheating your oven to 325°F (163°C). Blitz 16 Oreo cookies in a food processor until they turn into fine crumbs, then add sugar and melted butter to help the crust hold together. Press this mixture firmly into a 9-inch pie plate, covering the base and sides thoroughly. Bake for 15 minutes until fragrant, then cool completely. This crust creates the perfect sturdy yet tender base that delights with each bite.
Step 2: Prepare the Brownie Layer
Gently melt bittersweet chocolate with butter, vegetable oil, and cocoa powder in the microwave at half power, stirring until smooth. Meanwhile, whisk together brown sugar, eggs, vanilla, and salt until silky. Incorporate the chocolate mixture, then fold in flour just until combined. Pour this luscious batter over the cooled crust, bake for about 15 minutes until edges are set but center retains a slight gooeyness, then cool thoroughly before refrigerating. This brownie layer is key to that decadent Mississippi Mud Pie Recipe experience.
Step 3: Prepare the Crumb Topping
Pulsing 6 Oreos, powdered sugar, cocoa powder, and salt in your food processor creates a crumb topping reminiscent of sandy chocolate bits. Adding melted butter ensures the crumbs bake into a crunchy crust contrast. Spread evenly on a tray and bake until fragrant and slightly crisp, then let cool. This topping adds delightful texture that makes the pie truly special.
Step 4: Prepare the Chocolate Mousse
Melt the milk chocolate gently and allow to cool until just warm. Whip half the heavy cream until soft peaks form, then in another bowl, whip the remaining cream with cocoa powder, powdered sugar, and a pinch of salt until thick. Fold the cocoa cream into the melted chocolate, then gently fold in the whipped cream to create a fluffy chocolate mousse. Spread this smooth layer over the chilled brownie base and sprinkle the cooled crumb topping atop. Refrigerate the pie for at least 4 hours for the layers to set perfectly.
How to Serve Mississippi Mud Pie Recipe
Garnishes
Take your Mississippi Mud Pie Recipe to the next level by garnishing with freshly whipped cream, chocolate shavings, or even a drizzle of caramel sauce. These additions not only enhance flavors but create an elegant presentation that makes the dessert irresistible at parties or family dinners.
Side Dishes
This pie shines as the star dessert so it pairs beautifully with light, refreshing sides like fresh berries or a scoop of vanilla ice cream. The contrast between warm fruit or creamy ice cream and the rich chocolate pie elevates each bite to a heavenly experience.
Creative Ways to Present
For a festive twist, try serving individual portions in small glasses layered with extra cookie crumbs or whipped cream. Alternatively, sprinkle a pinch of sea salt on each slice to highlight the complex chocolate flavors. Small edible flowers or mint leaves add a delicate, colorful touch as well.
Make Ahead and Storage
Storing Leftovers
This Mississippi Mud Pie Recipe keeps brilliantly in the refrigerator, tightly covered with plastic wrap or in an airtight container for up to 4 days. Keeping it chilled ensures the mousse stays firm and the brownies maintain their fudgy texture.
Freezing
You can freeze the pie for up to 2 months by wrapping it carefully in plastic wrap and then foil. Thaw overnight in the refrigerator before serving to preserve its luscious layers without compromising on texture or flavor.
Reheating
This dessert is best enjoyed chilled, but if you want to serve it with a slightly warm touch, try warming individual slices in the microwave for 10-15 seconds. Just be careful not to melt the mousse—warm enough to soften the brownie layer slightly for an extra comforting bite.
FAQs
Can I use a different cookie for the crust?
Absolutely! While Oreos are classic for this pie, chocolate graham crackers or chocolate wafer cookies also work well, providing a slightly different flavor and texture but keeping the decadent feel.
Is this Mississippi Mud Pie Recipe very difficult to make?
Not at all! With clear steps and basic equipment like a food processor and microwave, this recipe is very accessible—even for confident beginners looking to impress with a stunning chocolate dessert.
Can I make this pie gluten-free?
To make a gluten-free version, use gluten-free chocolate cookies for the crust and ensure the cocoa powder and other ingredients are certified gluten-free. The rest of the ingredients naturally fit the bill.
How long should I chill the pie before serving?
Chilling for at least 4 hours is ideal to allow the mousse to set beautifully and for all layers to meld together. Overnight chilling improves flavor integration and makes slicing cleaner.
What’s the best way to slice Mississippi Mud Pie?
Use a sharp, warm knife to slice through the layers cleanly. Running the knife under hot water and wiping it dry between cuts helps keep slices neat and pretty for serving.
Final Thoughts
This Mississippi Mud Pie Recipe holds a special place in my heart and kitchen. Its combination of crunchy, fudgy, creamy, and crumbly layers makes every forkful a celebration of chocolate greatness. If you want to create a memorable dessert that’s as delicious as it is visually stunning, this is the pie to try. Trust me—it’s worth every step and every bite!
Print
Mississippi Mud Pie Recipe
- Total Time: 5 hours 10 minutes
- Yield: 12 servings 1x
Description
This decadent Mississippi Mud Pie features a crunchy Oreo crust, a rich and fudgy brownie layer, a smooth chocolate mousse topping, and a crunchy Oreo crumble finish. Perfect for chocolate lovers, this dessert combines multiple textures and intense chocolate flavors, chilled to set into a luscious pie that’s sure to impress.
Ingredients
Oreo Crust
- 16 Oreo cookies
- 1 tablespoon granulated sugar
- 4 tablespoons unsalted butter, melted and cooled
Brownie Layer
- 4 ounces bittersweet chocolate, finely chopped
- 3 tablespoons unsalted butter
- 3 tablespoons vegetable oil
- 1 ½ tablespoons unsweetened cocoa powder
- ⅔ cup dark brown sugar, firmly packed
- 2 large eggs, room temperature
- 2 teaspoons vanilla extract
- ¼ teaspoon salt
- 3 tablespoons all-purpose flour
Cookie Crumble Topping
- 6 Oreo cookies
- 2 tablespoons powdered sugar
- 1 tablespoon unsweetened cocoa powder
- ⅛ teaspoon salt
- 2 tablespoons unsalted butter, melted
Chocolate Mousse
- 6 ounces milk chocolate, chopped fine
- 1 cup heavy cream, very cold, divided (½ cup + ½ cup)
- 2 tablespoons unsweetened cocoa powder
- 2 tablespoons powdered sugar
- Pinch of salt
Instructions
- Prepare the Crust: Preheat the oven to 325°F (163°C). In a food processor, pulse 16 Oreo cookies into fine crumbs. Add 1 tablespoon granulated sugar and 4 tablespoons melted butter; pulse until combined. Press this mixture firmly into the bottom and up the sides of a 9-inch pie plate. Bake for 15 minutes until fragrant. Remove and cool on a wire rack.
- Prepare the Brownie Layer: In a microwave-safe bowl, combine 4 ounces chopped bittersweet chocolate, 3 tablespoons unsalted butter, 3 tablespoons vegetable oil, and 1 ½ tablespoons cocoa powder. Microwave at 50% power, stirring frequently, until melted and smooth (about 1 minute 30 seconds). In another bowl, whisk together ⅔ cup dark brown sugar, 2 large eggs, 2 teaspoons vanilla extract, and ¼ teaspoon salt until smooth. Add the melted chocolate mixture and whisk until combined. Stir in 3 tablespoons all-purpose flour until just incorporated. Pour the brownie batter into the cooled Oreo crust. Bake at 325°F (163°C) for about 15 minutes, until edges are set and a toothpick inserted in the center comes out with a thin coating of batter. Cool on a wire rack for 1 hour, then refrigerate for at least 1 hour until completely chilled.
- Prepare the Topping: In a food processor, pulse 6 Oreo cookies into coarse crumbs. Add 2 tablespoons powdered sugar, 1 tablespoon cocoa powder, and ⅛ teaspoon salt; pulse to combine. Drizzle in 2 tablespoons melted butter and pulse until the mixture resembles wet sand. Spread the crumb mixture evenly on a baking sheet. Bake at 325°F (163°C) for about 10 minutes until fragrant. Remove and cool completely.
- Prepare the Mousse: Melt 6 ounces milk chocolate in a microwave-safe bowl at 50% power, stirring frequently, until smooth. Let cool to about 85°F (29°C). In a chilled mixing bowl, whisk ½ cup heavy cream until soft peaks form; refrigerate. In another bowl, whisk the remaining ½ cup heavy cream, 2 tablespoons cocoa powder, 2 tablespoons powdered sugar, and a pinch of salt until thickened. Fold this cocoa mixture into the melted chocolate until combined. Gently fold in the whipped cream until no streaks remain.
- Assemble the Pie: Spread the chocolate mousse evenly over the chilled brownie layer. Sprinkle the cooled cookie crumble topping evenly over the mousse layer. Refrigerate the pie for at least 4 hours until set before serving.
Notes
- Use room temperature eggs to ensure better mixing for the brownie batter.
- Press the crust mixture firmly in the pie plate to avoid a crumbly crust.
- Check the brownies with a toothpick to avoid overbaking; the center should be slightly moist.
- Melt chocolate carefully at 50% power to prevent scorching.
- Chilling between steps helps the pie layers set properly for easy slicing.
- The pie keeps well refrigerated for up to 3 days.
- For added flavor, you can add a tablespoon of espresso powder to the brownie mixture to enhance the chocolate taste.
- Prep Time: 30 minutes
- Cook Time: 40 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
