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The Best Oreo Cookie Cake

Course Dessert
Keyword cake

Ingredients

Chocolate Cake

  • 1 box dark chocolate cake mix
  • 1 (3.4oz) box instant chocolate pudding mix (no fat free or sugar free mixes here)
  • 1 cup sour cream
  • 4 beaten eggs
  • 1/2 cup vegetable oil
  • 1/2 cup milk

Vanilla Cake

  • 1 box vanilla cake mix
  • 1 (3.4 oz) box instant vanilla pudding mix (no fat free or sugar free mixes here)
  • 1 cup sour cream
  • 4 beaten eggs
  • 1/2 cup vegetable oil
  • 1/2 cup milk

Oreo Buttercream Frosting

  • 20 oreos (crushed in a ziplock or powdered in a food processor)
  • 2 cups unsalted butter (room temperature)
  • 6 cups powdered sugar
  • 2 tsp vanilla extract
  • 4 tbsp heavy cream

Instructions

Cake Instructions

  1. Preheat oven to 350 degrees and line two 9" pans with parchment paper and spray with cooking spray. In a large bowl mix everything together for chocolate cake. We will repeat all these steps for the vanilla cake. 

  2. Pour batter into prepared pans and follow the cooking time instructions on the back of the dark chocolate cake box. You may need to add about 10 minutes extra to whatever it says. You can always check with a toothpick to see if it's done.

  3. Remove pans and let rest 5 minutes on a cooling rack before removing the cakes. let cakes cool completely before frosting.

  4. Repeat all steps for vanilla cake, combining all the ingredients (cake mix, pudding, sour cream, eggs, oil, and milk. Mix together and bake according to the instructions on the box.

Frosting Instructions

  1. In a food processor or a zip lock bag, blend or crush Oreos until they turn into a powder consistency.

  2. Mix butter with powdered sugar a 1/2 cup at a time until all blended. Add vanilla and heavy cream and mix well. Add crushed Oreos and blend.

  3. if the mixture is too thick, add an additional teaspoon of heavy cream one at a time until desired thickness and consistency is achieved.

  4. Spread between each layer of cake and all over the sides and top. I simply used a zip lock bag (cut a small corner off and piped on the small twirls of frosting on the top. Decorate with whole Oreo cookies til you achieve the final look you like.