Name: Oreo Peanut Butter Cake Recipe
Prep time: 25 min
Cook time: 29 min
Total time: 1 h 15 min
Cuisine: American
Ingredients: 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; 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; 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

Ingredients

2 cups all-purpose flour

1/4 cup cornstarch

1 cup unsweetened cocoa powder (dutch process recommended)

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

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 (for filling)

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 (for buttercream)

Extra Oreos for decoration

Instructions

Step 1: Preheat the oven to 350℉. Spray three 8-inch cake pans with nonstick baking spray, line the bottoms with parchment paper circles, and spray again.

Step 2: In a medium bowl, sift together the flour, cornstarch, baking powder, baking soda, and salt. Set aside.

Step 3: Heat the water until hot and steamy. In a large bowl, whisk the oil, sugar, vanilla, eggs, and buttermilk. Slowly whisk in the hot water.

Step 4: Add the dry ingredients to the wet mixture and whisk until smooth. Divide the batter evenly among the prepared pans.

Step 5: Bake the cakes for 24-29 minutes or until a toothpick inserted in the center comes out clean. Let the cakes cool in the pans for 10 minutes, then transfer to a wire rack to cool completely.

Step 6: For the Oreo peanut butter pie filling, beat the cream cheese, 1/3 cup peanut butter, and 1 tablespoon heavy cream on high speed until smooth.

Step 7: In a separate bowl, whip 1 cup heavy cream with powdered sugar and vanilla until soft peaks form. Fold the peanut butter cream cheese mixture into the whipped cream and beat until stiff peaks form.

Step 8: Pulse 8 Oreos in a food processor into small and medium pieces. Fold the Oreo pieces gently into the filling. Set aside.

Step 9: For the Oreo peanut butter buttercream, sift the powdered sugar and set aside. Blend 5 Oreos in a food processor to a fine crumb.

Step 10: Beat the butter on high speed for 2 minutes. Add the peanut butter and beat until smooth (about 1 minute).

Step 11: Add half the powdered sugar and mix on low until just combined, then add the rest and mix again. Scrape the bowl and mix in the vanilla extract.

Step 12: Beat on high speed for 1 minute until creamy, then fold in the Oreo crumbs.

Step 13: Use a serrated knife to level the domes off the cakes. Place the first cake layer on your serving plate and spread 1 cup of the pie filling evenly on top.

Step 14: Repeat with the second layer, then place the last cake layer upside down on top.

Step 15: Spread a thin layer of buttercream over the entire cake and refrigerate for 15 minutes to set.

Step 16: Finish frosting the cake with the remaining buttercream. Decorate with extra Oreos as desired.

Tips & Variations

Use room temperature ingredients to ensure a smooth batter and frosting.

For extra crunch, add chopped peanuts to the filling or frosting.

Substitute regular cream cheese for a lower-fat option, but expect a slightly different texture.

If you prefer, grind the Oreos coarser or finer depending on your texture preference in the filling and frosting.

FAQs

Can I make this cake without Oreos?

Yes, you can omit Oreos from the filling and frosting for a classic peanut butter chocolate cake, or substitute with other cookies like chocolate sandwich cookies or crushed nuts for texture.

Do I need a food processor to crush the Oreos?

A food processor makes it easy, but you can also place the Oreos in a sealed plastic bag and crush them with a rolling pin or the bottom of a heavy pan until you reach the desired consistency.