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Peanut Butter Mousse Pie

A decadent no-bake dessert featuring a crisp Oreo crust, airy peanut butter mousse, and a glossy chocolate ganache. Perfect for celebrations or quiet afternoons.
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Prep Time 20 minutes
Total Time 3 hours
Servings: 8 servings
Course: Dessert, No-Bake
Cuisine: American
Calories: 400
Ingredients Method Notes

Ingredients
  

For the crust
  • 22 pieces Oreos Chocolate sandwich cookies
  • 5 tbsp melted butter To bind the crust
For the mousse filling
  • 12 oz cream cheese, room temperature Ensure it is softened for easy blending
  • 1.5 cups smooth peanut butter Natural peanut butter should be stirred well before measuring
  • 1.5 cups powdered sugar
  • 0.5 tsp vanilla extract
  • 0.25 tsp salt
  • 1.5 cups heavy cream, cold To be whipped into the mousse
For the ganache
  • 4 oz semisweet chocolate, chopped Use quality chocolate for the best flavor
  • 0.5 cup heavy cream To make the ganache
For garnish
  • 1 cup peanut butter cups, for topping Optional, for decoration

Method
 

Preparation of the crust
  1. In a food processor, pulse the Oreos and melted butter until fine crumbs form.
  2. Press the mixture into the bottom and up the sides of a pie tin. Refrigerate while making the mousse.
Make the mousse filling
  1. Beat the cream cheese in a large mixing bowl until fluffy, about 2 minutes.
  2. Add the peanut butter, powdered sugar, vanilla extract, and salt, and beat for another minute.
  3. Incorporate the cold heavy cream and beat until super light and fluffy, about 3 minutes.
  4. Pour the mousse into the prepared pie crust and smooth it out with an offset spatula.
Chill the pie
  1. Transfer the mousse pie to the refrigerator and chill for 2 to 3 hours until firm.
Prepare the ganache
  1. Heat the 1/2 cup of heavy cream until steaming hot, then pour it over the chopped chocolate in a bowl.
  2. Let sit for 1-2 minutes, then whisk until smooth.
  3. Pour the ganache over the chilled pie and smooth it out.
  4. Optional: garnish with halved or quartered peanut butter cups.
Final chill
  1. Chill the pie in the fridge for another 30 to 60 minutes before serving.

Notes

Serve with a dollop of whipped cream, a sprinkle of flaky salt, or chopped peanuts for extra contrast and shine. Pair with hot coffee or cold milk for added enjoyment.