The ultimate Oreo cake! Triple layer chocolate cake, cookies and cream filling, chocolate fudge frosting, and white chocolate glaze. Then garnished with more chocolate frosting Oreo cookies.
Make the Cake: Preheat oven to 350 degrees F. Grease three 8-inch round cake pans, line the bottoms with rounds of parchment paper, grease the parchment, then flour the insides of the pans, tapping out excess; set aside.
Make the Cookies and Cream Filling: Using an electric mixer on medium speed, beat the cream cheese, butter, and vanilla until smooth, about 2 to 3 minutes. Reduce the mixer speed to low and add the powdered sugar, mixing until completely incorporated. Increase the mixer speed to medium-high and beat until fluffy, about 1 minute. Using a rubber spatula, fold in the crushed cookies.
Make the Chocolate Fudge Frosting: Place all ingredients in a food processor and process until smooth, about 1 minute, stopping to scrape the sides of the bowl halfway through.
Make the White Chocolate Glaze: In a large bowl, whisk together the powdered sugar, milk, and vanilla extract until incorporated and smooth. Slowly stir in the white chocolate with a rubber spatula. The glaze should be thick yet pourable; if the glaze appears too thick, thin it out with addition milk, a tablespoon at a time, until you reach the desired consistency.
Assemble the Cake: Place one of the cake layers on a serving platter and spread with half of the cookies and cream filling. Top with another cake layer and spread with the remaining cookies and cream filling. Top with the remaining cake layer. Frost the entire cake with the chocolate fudge frosting. Pour the white chocolate glaze onto the center of the top of the cake and allow to spread and drip over the sides. Refrigerate for at least 15 minutes, or until it is completely set. Using the chocolate fudge frosting, pipe swirls on top of the cake and garnish with additional Oreo cookies. The cake can be kept at room temperature if being served the same day. If you are making the cake ahead of time (or have leftovers), store it in the refrigerator but allow it to sit at room temperature for at least 1 hour prior to serving.
Nutritional values are based on one serving