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Cookies and Cream Cake with Coffee Oreo Buttercream Recipe

4.5 from 80 reviews

A decadent Cookies and Cream Cake infused with Oreo pieces throughout the moist cake layers and topped with a rich Coffee Oreo Buttercream, blending sweet creaminess with a hint of espresso for a unique twist on a classic dessert.

Ingredients

Scale

Cake

  • 1 sleeve of Oreo cookies (about 16 cookies), cream removed
  • 1/2 cup butter, room temperature
  • 1/2 cup oil
  • 1 1/2 cups sugar
  • 4 eggs, room temperature
  • 2 tablespoons vanilla extract
  • 3 cups cake flour
  • 1 teaspoon salt
  • 2 1/2 teaspoons baking powder
  • 1 1/3 cups buttermilk

Buttercream Frosting

  • 1 cup unsalted butter, room temperature
  • 3 1/2 cups powdered sugar (about one box)
  • 4 tablespoons whole milk
  • 23 tablespoons espresso powder (to taste)
  • 2 teaspoons vanilla extract
  • 1/2 teaspoon salt
  • 1 sleeve of Oreos, cream removed and crushed

Instructions

  1. Preheat and Prepare Pans: Preheat your oven to 325°F (163°C). Grease and flour either three 6-inch cake pans or two 8 or 9-inch pans, then set them aside.
  2. Crush Oreo Cookies: Separate the Oreos and scrape off the cream. Put only the cookie parts into a plastic bag and crush them into small pieces using a rolling pin.
  3. Mix Butter and Oil: In a large mixing bowl fitted with a whisk attachment, beat the softened butter and oil together until well combined and homogenous, about 3 minutes. Ensure the butter is completely softened to achieve the right consistency.
  4. Add Sugar: Gradually add the granulated sugar to the butter and oil mixture while beating on high speed until the mixture is light, fluffy, and pale yellow, approximately 3 minutes.
  5. Incorporate Eggs and Vanilla: Add the eggs one at a time, mixing in the vanilla extract as well. Scrape down the bowl between additions. After adding all eggs, beat the mixture on high for an additional 3 minutes to incorporate as much air as possible.
  6. Mix Dry and Wet Ingredients: In a separate bowl, sift together cake flour, salt, and baking powder. Alternate adding the dry ingredients and buttermilk to the batter in four batches, starting and ending with the dry ingredients. Mix until just combined; some lumps are okay. Fold in the crushed Oreo cookies gently.
  7. Bake the Cake Layers: Divide the batter evenly into the prepared pans. Bake for about 30 minutes or until the cakes are lightly golden brown, spring back when pressed, and a knife inserted comes out clean. Remove from oven and transfer to a cooling rack to cool completely.
  8. Prepare Coffee Oreo Buttercream: In a mixing bowl, cream the unsalted butter, powdered sugar, whole milk, vanilla extract, and salt together until light and fluffy, about 1 minute. Gradually add espresso powder one tablespoon at a time to achieve your desired coffee flavor (2 tablespoons for mild, 3 for strong). Gently fold in the crushed Oreos by hand to avoid breaking them up too finely.
  9. Assemble the Cake: Place one cake layer on a cake stand or serving plate. Spread a generous amount of coffee Oreo buttercream on top. Repeat layering with the remaining cake layers and frosting. Use the remaining frosting to frost the edges of the cake evenly. Finish by sprinkling crushed Oreos on top for decoration.
  10. Serve and Enjoy: Slice and serve the delicious Cookies and Cream Cake with Coffee Oreo Buttercream, perfect for celebrations or any special occasion.

Notes

  • Make sure butter is completely at room temperature before mixing to ensure a smooth batter.
  • Do not overmix the batter once you combine dry and wet ingredients to keep the cake tender.
  • Adding espresso powder to the buttercream enhances the flavor with a subtle coffee undertone, but adjust to taste.
  • Use a hand mixing method when folding in crushed Oreos to maintain their texture in the frosting.
  • Allow cakes to cool completely before frosting to prevent melting.
  • You can substitute buttermilk with milk + 1 tablespoon lemon juice or vinegar if needed.
  • For a stronger Oreo presence, you can reserve some crushed Oreos to garnish the sides of the frosted cake.

Keywords: Cookies and Cream Cake, Oreo Cake, Coffee Buttercream, Oreo Buttercream, Espresso Cake Frosting, Dessert Cake Recipe, Layer Cake