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If you’ve ever tried to grab one of those Costco Peanut Butter Chocolate Pies, you know they sell out fast. After missing out one too many times, I decided it was time to make my own at home. This version is just as delicious, and the best part is you don’t have to fight anyone in the bakery section to get it.

Overhead view of chocolate peanut butter pie on white plate.

It starts with a buttery graham cracker crust, then gets filled with creamy peanut butter mousse and topped with rich chocolate mousse and a peanut butter swirl. It’s over-the-top in the best way and always disappears fast when I bring it to parties. If you’re into easy, no-stress desserts that taste like they came from a bakery, this one’s for you.

Ingredients You Will Need

Ingredients for Chocolate Peanut Butter Pie in bowls on white surface.

Graham cracker crumbs and sugar create the sweet, crunchy crust that holds everything together.
Butter binds the crust and gives it a rich, toasty flavor when baked.
Semi-sweet chocolate chips form the base of the chocolate mousse layer.
Heavy cream is heated and poured over the chocolate to make a smooth ganache that’s later whipped into the mousse.
Powdered sugar sweetens the filling while keeping it smooth and easy to blend into the cream cheese.
Cream cheese adds a rich, tangy base to both the peanut butter and chocolate layers, giving the pie structure and creaminess.
Peanut butter brings flavor and creamy texture to the peanut butter mousse layer.
Whipped topping lightens the peanut butter and chocolate mixtures, giving the pie a mousse-like texture.

Frequently Asked Questions

Do I have to bake the crust? Yes, baking the crust helps it set and gives it a golden, toasty flavor. It also helps the pie hold together better when sliced.

Can I use homemade whipped cream instead of store-bought whipped topping? Yes. Make sure to whip it until stiff peaks form so it holds up in the mousse layers. Use the same amount as the store-bought version.

What type of peanut butter works best? Regular creamy peanut butter (like Jif or Skippy) works best. Natural peanut butters tend to separate and may not give the same smooth texture.

Can I use milk chocolate instead of semi-sweet? You can, but the pie will be much sweeter. Semi-sweet gives a nice balance to the richness of the peanut butter layer.

Can I use low-fat or light cream cheese? You can, but the texture may not be as rich and creamy. Full-fat cream cheese gives the best results.

Crushed graham crackers in silver bowl. — Melt your butter and add that to the crumbs and stir to combine.

Graham cracker crust in glass pie plate. — Press the crumbs down the bottom and up the sides of a 9 inch pie plate.

Helpful Tips

Soften your cream cheese completely. Cold cream cheese can leave lumps in your filling. Let it sit at room temperature for about 30–60 minutes before mixing.

Don’t overmix the mousse layers. Once you fold in the whipped topping, mix gently to keep everything light and fluffy. Overmixing can deflate the mousse.

Chill the crust before filling (after baking). Let the crust cool completely so the filling doesn’t melt when added. You can even put it in the fridge for a few minutes to speed things up.

Use room temperature whipped topping. If using frozen whipped topping (like Cool Whip), thaw it in the fridge overnight so it blends smoothly into the mousse without deflating.

Melted chocolate and heavy cream in silver bowl. — Pour the heavy cream over the chocolate chips, let them sit for 5 minutes and stir to melt and combine.

White creamy substance on top of melted chocolate in silver bowl. — Fold in the remaining whipped topping.

Storage Tips

Store in the fridge for up to 4 days. Keep the pie refrigerated in an airtight container or covered pie dish. The mousse layers stay fresh and creamy for several days.

Freeze for longer storage. You can freeze the pie whole or in individual slices. Wrap tightly in plastic wrap, then foil, and freeze for up to 2 months.

Thaw in the fridge overnight. If frozen, let the pie thaw slowly in the refrigerator. Avoid thawing at room temperature to keep the mousse layers from getting too soft or runny.

Keep it cold during transport. If you’re bringing it to a gathering, use an insulated bag or cooler with an ice pack to keep it chilled. The mousse filling can soften quickly if it gets too warm.

Peanut butter, powdered sugar, and cream cheese in silver bowl. — In a large bowl place one block (8 ounces) of cream cheese, 1 cup of powdered sugar and the peanut butter.

Peanut butter mixture topped with white topping in silver bowl. — Fold in half of the whipped topping. Set aside.

Substitutions and Variations

Crust: Use crushed Oreos, vanilla wafers, or even a chocolate cookie crust instead of graham crackers for a different flavor base.

Make it a frozen pie: Instead of chilling, put the finished pie in the freezer and serve it semi-frozen like an ice cream pie.

Add crunch: Sprinkle chopped peanuts, toffee bits, or mini chocolate chips between the mousse layers or on top for added texture.

Make it s’mores-style. Add a layer of mini marshmallows between the crust and peanut butter layer, or toast some on top with a kitchen torch.

Add a layer of chopped Reese’s. Mix chopped peanut butter cups into the peanut butter mousse or sprinkle them on top.

Graham cracker crust topped with creamy peanut butter mixture. — Spread ¾ of the peanut butter mixture into the bottom of the pie crust.

What to Serve with Chocolate Peanut Butter Pie

Avocado Deviled Eggs – A crowd-pleaser that’s easy to make ahead and doesn’t compete with sweet flavors.

Grilled chicken or salmon – Lightly seasoned proteins with roasted veggies keep the meal from feeling too heavy.

Champagne or sparkling wine – Bubbles go well with dessert.

Cold brew or espresso – Coffee and chocolate are always a good match.

Chocolate-covered strawberries – Pretty, easy, and always a hit with chocolate desserts.

Side view of chocolate peanut butter pie on white plate.

Other Recipes You May Enjoy

If you like Chocolate Peanut Butter Pie, you might also like my Chocolate Peanut Butter Brownies or my Old-Fashioned Peanut Butter Pie. These Peanut Butter Chocolate Sandwich Cookies are also delicious.

Final Thoughts

If you’re a fan of that Costco pie or just love chocolate and peanut butter, you’ve gotta give this a try. It’s super easy, really good, and always a hit. Make it soon and tell me if your family devours it as fast as mine does!