Mississippi Mud Pie Recipe: Ultimate Rich Thanksgiving Treat

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Mississippi Mud Pie brings serious chocolate comfort to a Thanksgiving table. You get a crunchy Oreo crust, a fudgy brownie center, silky chocolate mousse, and crisp cookie pieces on top. Better yet, the full recipe takes about 5 hours, although cooling and chilling take most of that time. One 9 inch pie serves 12.

What Is Mississippi Mud Pie?

Mississippi Mud Pie is a layered chocolate dessert with bold textures in every bite. First comes a crisp cookie crust. Then a dense brownie layer and creamy mousse create that signature rich center.

Why You’ll Love This Mississippi Mud Pie

This Mississippi Mud Pie looks impressive, yet each layer uses familiar ingredients. Also, most of the work happens before guests arrive.

Four Irresistible Chocolate Layers

First, crunchy Oreos give the pie a firm base. Next, fudgy brownie, smooth mousse, and crisp cookie clusters create plenty of contrast.

Perfect for Thanksgiving and Holiday Entertaining

Because it serves 12, Mississippi Mud Pie works well for Thanksgiving dinner. Also, its deep chocolate flavor offers a nice change from fruit and pumpkin pies.

Easy to Make Ahead

In fact, extra chilling helps the layers become firm. Therefore, you can make the whole pie the day before serving.

Mississippi Mud Pie Ingredients

You need a 9 inch pie plate and four groups of ingredients.

Oreo Cookie Crust

Use 16 whole Oreo cookies, 1 tablespoon sugar, and 4 tablespoons melted and cooled unsalted butter.

Fudgy Brownie Layer

Use 4 ounces bittersweet chocolate, 3 tablespoons butter, 3 tablespoons vegetable oil, 1 1/2 tablespoons cocoa powder, 2/3 cup dark brown sugar, 2 eggs, 2 teaspoons vanilla, 1/4 teaspoon salt, and 3 tablespoons flour.

Crunchy Oreo Topping

Combine 6 crushed Oreos with 2 tablespoons powdered sugar, 1 tablespoon cocoa powder, 1/8 teaspoon salt, and 2 tablespoons melted butter.

Chocolate Mousse

Use 6 ounces milk chocolate, 1 cup very cold heavy cream, 2 tablespoons cocoa powder, 2 tablespoons powdered sugar, and a pinch of salt.

Ingredient Tips and Substitutions

Small ingredient choices make a noticeable difference in Mississippi Mud Pie. Therefore, keep these details in mind.

Use Whole Oreos for the Crust

Use the cookie and filling together. As a result, the crust gets a sweeter flavor and holds together nicely.

Choose Bittersweet Chocolate for the Brownie Layer

Bittersweet chocolate balances the sweet cookies and mousse. Also, it gives the brownie layer a deeper cocoa taste.

Why Heavy Cream Is Essential for the Mousse

Heavy cream gives the mousse enough structure to stay fluffy. Therefore, do not replace it with milk or half and half.

Finely Chop the Chocolate for Smooth Melting

Finely chopped chocolate melts faster and more evenly. As a result, you can avoid stubborn lumps.

Mississippi Mud Pie slice with fudgy chocolate layers, creamy mousse, and crunchy Oreo crumbs.

How to Make Mississippi Mud Pie

Plan about 1 hour for prep, 1 hour for cooking, and 3 hours for chilling. Altogether, Mississippi Mud Pie takes about 5 hours.

Step 1: Make and Bake the Oreo Crust

First, heat the oven to 325°F. Process 16 Oreos into fine crumbs, mix them with butter, press them into the pie plate, and bake for about 15 minutes. Then let the crust cool.

Step 2: Prepare the Fudgy Brownie Layer

Next, microwave bittersweet chocolate, butter, oil, and cocoa at 50% power. Stir often until smooth.
Meanwhile, whisk brown sugar, eggs, vanilla, and salt. Then add the chocolate mixture and gently stir in the flour. Spread it into the crust and bake for about 15 minutes, until the edges set while the center stays fudgy.

Step 3: Cool and Chill the Brownie Completely

Cool the brownie at room temperature for about 1 hour. Then refrigerate it for at least 1 more hour.

Step 4: Make the Crunchy Oreo Topping

Next, crush 6 Oreos into small chunks. Mix them with powdered sugar, cocoa, salt, and butter.
Then spread the mixture on a parchment lined baking sheet. Bake it at 325°F for about 10 minutes and stir halfway through. Finally, cool it completely.

Step 5: Prepare the Chocolate Mousse

Melt the milk chocolate at 50% microwave power. Then cool it to about 90 to 100°F.
Meanwhile, warm 3 tablespoons cream to about 105 to 110°F and whisk in the cocoa. Add powdered sugar, salt, and the remaining cold cream, then whip to soft peaks.
Next, fold one third of the cream mixture into the chocolate. After that, gently fold in the rest.

Step 6: Assemble and Chill the Pie

Spread the mousse over the cold brownie layer. Then add the Oreo topping and refrigerate Mississippi Mud Pie for 3 to 4 hours or overnight.

Tips for the Best Mississippi Mud Pie

A little patience gives you cleaner layers and a lighter mousse.

Let Every Layer Cool Before Adding the Next

Warm layers can soften the crust or mousse. Therefore, give each section enough cooling time.

Cool the Mousse Chocolate to the Right Temperature

Aim for 90 to 100°F before folding. Otherwise, hot chocolate can flatten the whipped cream.

Whip the Cream Only to Soft Peaks

Stop when the cream forms soft peaks. As a result, the mousse stays silky instead of stiff.

Fold the Mousse Gently to Keep It Light

Use slow folding motions. Also, stop as soon as the mixture looks even.

Don’t Rush the Final Chill

Give the assembled Mississippi Mud Pie at least 3 to 4 hours in the refrigerator. Better still, chill it overnight.

Use a Warm Knife for Clean Slices

Run a sharp knife under hot water, then dry it. Next, slice the pie and repeat before each cut.

How Far Ahead Can You Make Mississippi Mud Pie?

This dessert works especially well for busy holiday cooking.

Making the Crust and Brownie Layer Ahead

You can bake the crust and brownie layer one day early. Then cover the pie and refrigerate it overnight.

Assembling the Entire Pie the Day Before

You can also finish the mousse and assemble Mississippi Mud Pie the day before Thanksgiving. In fact, the extra chilling time helps the slices hold their shape.

When to Add the Crunchy Oreo Topping

For the crispest topping, add the cookie pieces closer to serving. However, you can add them earlier when convenience matters more.

How to Store Mississippi Mud Pie

Keep Mississippi Mud Pie tightly covered in the refrigerator for about 3 to 4 days.

Refrigerating Leftovers

Cover the pie well so the mousse stays fresh. Also, return leftovers to the refrigerator soon after serving.

Can You Freeze Mississippi Mud Pie?

I do not recommend freezing it. The dairy rich mousse can turn grainy or separate after thawing.

How to Serve Mississippi Mud Pie

Serve this dessert cold so every layer stays firm and distinct.

Getting Clean, Defined Slices

Use a warm, dry knife for each cut. Then wipe the blade before slicing again.

Serving Ideas for Thanksgiving

Serve small slices because Mississippi Mud Pie tastes deeply rich. Also, hot coffee makes a simple partner for all that chocolate.
No nutrition information appears with the supplied published recipe, so I would avoid guessing at calories or other values.
For more recipe inspiration, you can also follow Kai Recipes on Pinterest or visit Kai Recipes on Facebook.

Frequently Asked Questions

What is Mississippi mud pie made of?

Mississippi Mud Pie usually combines a chocolate cookie crust with rich chocolate fillings. This version uses an Oreo crust, fudgy brownie, milk chocolate mousse, and crunchy Oreo topping.

What was Michael Jackson’s favorite pie?

Reliable primary sources do not clearly confirm one specific pie as Michael Jackson’s favorite. Therefore, I would avoid treating online claims about his favorite pie as established fact.

How do you make Mississippi mud?

For this dessert, you create the signature mud style by layering a dark cookie crust, fudgy chocolate brownie, creamy chocolate mousse, and crunchy chocolate cookies. Then chill everything until firm.

What are the ingredients in a mud pie?

Ingredients vary by recipe. However, this Mississippi Mud Pie uses Oreos, butter, sugar, bittersweet chocolate, milk chocolate, cocoa powder, brown sugar, eggs, vanilla, flour, powdered sugar, salt, vegetable oil, and heavy cream.

More Such Recipes

Mississippi Mud Pie with fudgy brownie, chocolate mousse, Oreo crust, and crunchy cookie topping
Mississippi Mud Pie with fudgy brownie, creamy mousse, and crunchy Oreo layers.

Final Thoughts

Mississippi Mud Pie brings everything I want from a holiday chocolate dessert: crunch, fudge, soft mousse, and a little cookie crumble in every forkful. Also, the make ahead timing keeps Thanksgiving day much calmer. Give the layers time to cool, chill the finished pie well, and serve it straight from the refrigerator.

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Mississippi Mud Pie slice with Oreo crust, fudgy brownie, chocolate mousse, and cookie topping

Mississippi Mud Pie: Ultimate Rich Thanksgiving Treat


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  • Author: kai

Description

Mississippi Mud Pie is a rich make-ahead Thanksgiving dessert with a crunchy Oreo crust, fudgy brownie layer, silky milk chocolate mousse, and crisp chocolate cookie topping. This 9-inch pie serves 12 and takes about 5 hours from start to finish, with most of that time spent cooling and chilling.


Ingredients

Scale
  • Crust:
  • 16 Oreo cookies, including filling
  • 1 tablespoon 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 1/2 tablespoons unsweetened cocoa powder
  • 2/3 cup firmly packed dark brown sugar
  • 2 large eggs
  • 2 teaspoons vanilla extract
  • 1/4 teaspoon salt
  • 3 tablespoons all-purpose flour
  • Crunchy Oreo Topping:
  • 6 Oreo cookies
  • 2 tablespoons powdered sugar
  • 1 tablespoon cocoa powder
  • 1/8 teaspoon salt
  • 2 tablespoons unsalted butter, melted
  • Chocolate Mousse:
  • 6 ounces milk chocolate, finely chopped
  • 1 cup very cold heavy cream, divided
  • 2 tablespoons cocoa powder
  • 2 tablespoons powdered sugar
  • Pinch of salt

Instructions

  1. Preheat the oven to 325°F with a rack in the center. Process 16 Oreos into fine crumbs. Mix the crumbs with the sugar and 4 tablespoons melted butter. Firmly press the mixture into the bottom and sides of a 9-inch pie plate. Bake for about 15 minutes, then let the crust cool.
  2. For the brownie layer, combine the bittersweet chocolate, 3 tablespoons butter, vegetable oil, and cocoa powder in a microwave-safe bowl. Microwave at 50% power, stirring often, until smooth.
  3. In another bowl, whisk the dark brown sugar, eggs, vanilla, and salt. Stir in the melted chocolate mixture. Then gently stir in the flour.
  4. Spread the brownie batter evenly into the cooled Oreo crust. Bake for about 15 minutes, until the edges look set but the center remains fudgy.
  5. Cool the pie at room temperature for about 1 hour. Then refrigerate it for at least 1 hour, or until the brownie layer feels completely chilled.
  6. For the crunchy Oreo topping, crush 6 Oreos into roughly 1/2-inch to 3/4-inch pieces. Mix them with the powdered sugar, cocoa powder, salt, and melted butter.
  7. Spread the topping mixture on a parchment-lined baking sheet. Bake at 325°F for about 10 minutes, stirring halfway through. Let it cool completely, then break apart any large clusters.
  8. For the mousse, melt the milk chocolate at 50% microwave power, stirring frequently. Let the chocolate cool to about 90°F to 100°F.
  9. Heat 3 tablespoons of the heavy cream to about 105°F to 110°F. Whisk in the cocoa powder until smooth.
  10. Combine the cocoa cream mixture with the powdered sugar, salt, and remaining cold heavy cream. Whip until soft peaks form.
  11. Fold about one-third of the whipped cream mixture into the cooled melted chocolate. Then gently fold in the remaining whipped mixture until evenly combined.
  12. Spread the chocolate mousse over the completely chilled brownie layer. Add the cooled Oreo topping.
  13. Refrigerate the assembled Mississippi Mud Pie for 3 to 4 hours or overnight before serving.

Notes

Do not start the mousse until the brownie layer feels thoroughly chilled.

 

Let the melted milk chocolate cool to about 90°F to 100°F before folding in the whipped cream. Chocolate that feels too warm can cause the mousse to lose volume.

 

An instant-read thermometer helps you check the chocolate and cream temperatures.

 

Use whole Oreos, including the filling, when making the crust.

 

Finely chopped chocolate melts more evenly.

 

Use heavy cream for the mousse. Do not replace it with milk or half-and-half because the mousse needs the extra fat for structure.

 

Plan for at least 5 hours from start to finish. You can also make the entire pie one day ahead.

 

For the crispest texture, add the crunchy Oreo topping close to serving.

 

Store the pie tightly covered in the refrigerator for about 3 to 4 days.

 

Freezing is not recommended because the dairy-rich mousse can separate or turn grainy after thawing.

 

For clean slices, warm a sharp knife under hot water, dry it, and wipe it clean between cuts.

 

No nutrition information was provided with the published recipe, so the nutrition fields are left blank.

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