Oreo Peanut Butter Cake Recipe
This Oreo Peanut Butter Cake combines rich chocolate layers with a creamy peanut butter and Oreo pie filling, all enveloped in a smooth, decadent Oreo peanut butter buttercream frosting. Perfect for any celebration, this cake offers a luscious balance of chocolate and nutty flavors with the delightful crunch of Oreos throughout.
- Author: Lila
- Prep Time: 20 minutes
- Cook Time: 29 minutes
- Total Time: 1 hour 20 minutes
- Yield: 12 servings 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Chocolate Cake
- 2 cups All-purpose flour
- 1/4 cup Cornstarch
- 1 cup Unsweetened cocoa powder (Dutch process)
- 2 tsp Baking powder
- 1/2 tsp Baking soda
- 1 tsp Salt
- 1 cup Oil (canola or vegetable)
- 1 3/4 cup White granulated sugar
- 1 tsp Pure vanilla extract
- 4 Large eggs (room temperature)
- 1 cup Buttermilk (room temperature)
- 1 cup Hot water
Oreo Peanut Butter Pie Filling
- 4 oz Cream cheese (room temperature)
- 1/3 cup Peanut butter (creamy Jif or Skippy)
- 1 TBSP Heavy cream
- 1 cup Heavy cream
- 1/3 cup Powdered sugar
- 1 tsp Pure vanilla extract
- 8 Oreos
Oreo Peanut Butter Buttercream
- 2 cups Unsalted butter (room temperature)
- 1 cup Peanut butter (creamy Jif or Skippy)
- 3 cups Powdered sugar (sifted)
- 1 tsp Pure vanilla extract
- 5 Oreos
- Extra Oreos for decoration
- Preheat and Prepare Pans: Preheat your oven to 350℉. Spray three 8-inch cake pans with nonstick baking spray, then line the bottoms with parchment paper circles and spray again to ensure cakes release easily.
- Sift Dry Ingredients: In a medium bowl, sift together the all-purpose flour, cornstarch, baking powder, baking soda, salt, and unsweetened cocoa powder. Set aside.
- Mix Wet Ingredients: Heat water until hot and steamy on the stove. In a large bowl, whisk together oil, sugar, vanilla extract, eggs, and buttermilk until combined. Gradually whisk in the hot water to the mixture to thin the batter.
- Combine Batter: Add the sifted dry ingredients to the wet ingredients and whisk until the batter is smooth and well blended. Pour the batter evenly into the prepared cake pans.
- Bake the Cakes: Bake in the preheated oven for 24 to 29 minutes, or until a toothpick inserted into the center of the cakes comes out clean.
- Cool Cakes: Allow the cakes to cool in their pans for 10 minutes before transferring them to wire racks to cool completely before decorating.
- Make Oreo Peanut Butter Pie Filling – Beat Cream Cheese Mixture: In a small bowl, use a hand mixer to beat together the cream cheese, peanut butter, and 1 tablespoon heavy cream on high speed until smooth and creamy.
- Whip Heavy Cream: In a separate mixing bowl fitted with a whisk attachment, beat the 1 cup heavy cream, powdered sugar, and vanilla extract on high speed until soft peaks form. Then fold in the cream cheese-peanut butter mixture and beat again on high speed until stiff peaks form.
- Add Oreos to Filling: Use a food processor to chop the 8 Oreos into small to medium pieces, then fold them into the prepared filling. Set aside.
- Make Oreo Peanut Butter Buttercream – Prepare Ingredients: Sift powdered sugar in a medium bowl and blend the 5 Oreos into fine crumbs with a food processor. Set both aside.
- Beat Butter and Peanut Butter: In a mixing bowl, beat the unsalted butter on high speed for 2 minutes until fluffy. Add the peanut butter and beat for another 1 minute until smooth.
- Add Powdered Sugar and Vanilla: Gradually add half the powdered sugar and mix on low until just incorporated. Add the remaining powdered sugar, mix, then add vanilla extract and scrape the bowl.
- Incorporate Oreo Crumbs: Beat frosting on high speed for 1 more minute until creamy, then fold in the Oreo crumbs.
- Trim Cake Layers: Using a serrated knife, carefully level off the domed tops of the cakes to create flat layers for stacking.
- Assemble Cake – Layer with Filling: Place the first cake layer on your cake stand or plate. Spread about 1 cup of the Oreo peanut butter pie filling evenly over the top. Repeat with the second layer.
- Top and Chill: Place the final cake layer on top, upside down so the bottom side faces up for a flat surface. Lightly frost the entire cake with a thin crumb coat layer of buttercream and place it in the freezer for 15 minutes to set.
- Final Frosting and Decoration: Apply the remaining buttercream frosting generously over the cake. Use extra Oreos to decorate the top as desired. Chill briefly if needed before serving.
Notes
- Room temperature ingredients ensure better mixing and texture.
- Using dutch-processed cocoa powder yields a richer chocolate flavor.
- Make sure to cool cakes completely before frosting to prevent melting.
- The whipped pie filling can be made ahead and stored refrigerated for up to 24 hours.
- Freeze the cake briefly after crumb coating to make the final frosting smoother and easier to apply.
- For cleaner cuts, chill the cake before slicing.
Keywords: Oreo cake, peanut butter cake, chocolate cake, layered cake, Oreo dessert, peanut butter frosting, chocolate peanut butter cake