Description
A rich and decadent Oreo Peanut Butter Cake featuring moist chocolate layers, creamy peanut butter and Oreo filling, and a luscious Oreo peanut butter buttercream frosting. Perfect for peanut butter and chocolate lovers seeking a show-stopping dessert.
Ingredients
Scale
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
Instructions
- Preheat and prepare pans: Preheat oven to 350℉. Spray three 8-inch cake pans with nonstick baking spray, line bottoms with parchment circles, and spray again to ensure easy removal.
- Sift dry ingredients: In a medium bowl, sift together all-purpose flour, cornstarch, cocoa powder, baking powder, baking soda, and salt. Set aside.
- Heat water and mix wet ingredients: Heat water until hot and steamy. In a large bowl, whisk oil, sugar, vanilla extract, eggs, and buttermilk together, then slowly whisk in the hot water to combine fully.
- Combine dry and wet ingredients: Gradually add the dry ingredients to the wet ingredients and whisk until the batter is smooth and uniform.
- Divide and bake cake layers: Pour batter evenly into the three prepared cake pans. Bake for 24-29 minutes until a toothpick inserted in the center comes out clean.
- Cool cakes: Let the cakes rest in their pans for 10 minutes after baking, then transfer to a wire rack to cool completely before decorating.
- Prepare Oreo peanut butter filling: Beat cream cheese, peanut butter, and 1 tablespoon heavy cream with a hand mixer until smooth. Separately, whip 1 cup heavy cream with powdered sugar and vanilla until soft peaks form, then gently fold the peanut butter mixture in and beat to stiff peaks. Pulse 8 Oreos in a food processor into small-medium chunks and fold into the filling. Set aside.
- Make Oreo peanut butter buttercream: Sift powdered sugar and set aside. Process 5 Oreos into fine crumbs with a food processor. Beat butter on high speed for 2 minutes, then add peanut butter and beat until smooth. Gradually add powdered sugar in two additions, mixing on low then scraping the bowl. Add vanilla extract and beat on high for 1 minute until creamy, then fold in Oreo crumbs.
- Trim cake layers: Using a serrated knife, level the domed top of each cake layer for an even finish.
- Assemble the cake: Place the first cake layer on a cake board or plate. Spread 1 cup of the Oreo peanut butter filling evenly on top. Repeat with the second layer and filling. Place the third cake layer upside down (bottom side up) on top.
- Crumb coat and chill: Frost the assembled cake with a thin layer of the Oreo peanut butter buttercream and place in the freezer for 15 minutes to set the crumb coat.
- Final frosting and decoration: Apply the remaining buttercream smoothly over the cake. Use the remaining frosting to pipe decorations as desired. Garnish the top with extra Oreo cookies to finish.
Notes
- Room temperature ingredients ensure better mixing and cake texture.
- Use fresh or well-stored Oreos for the best flavor and crunch in the filling and frosting.
- Make sure to sift powdered sugar and dry ingredients for a smooth batter and frosting.
- Cooling cake layers completely prevents melting the frosting during assembly.
- Storing leftover cake wrapped tightly in the refrigerator keeps it fresh up to 4 days.
- Prep Time: 25 minutes
- Cook Time: 29 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Keywords: Oreo cake, peanut butter cake, chocolate cake, Oreo peanut butter frosting, layered cake, dessert, party cake
