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happy birthday cake on a cake stand

A Very Happy Birthday Cake

This Very Happy Birthday Cake is so simple to prepare, delicious and puts a smile on every birthday boy or girls face!
Course Dessert
Cuisine American
Keyword birthday cake, chocolate cake, Cookies and Cream, happy birthday cake
Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes
Servings 8
Calories 749kcal
Author Jenny
Cost $20


  • Oven
  • Bowl
  • cake pans


  • 1 Box Devils Food Cake Mix
  • 4 large eggs
  • 1/2 cup canola oil
  • 1/2 cup milk or heavy cream
  • 1/2 cup sour cream
  • 3.4 once box instant chocolate pudding mix

Cookies and Cream Frosting

  • 2 sticks softened butter salted
  • 3 1/2 cups powdered sugar
  • 2-3 tablespoons milk
  • 6 whole Oreo Cookies crushed

For Top of Cake

  • 1 bag Ghirardelli White Melts
  • 6 whole Oreo Cookies
  • 4 Nutty Buddy Bars
  • 1 Star Crunch halved
  • 2 individual packages Cosmic Brownies halved


  • Preheat oven to 350 degrees F. and spray two 9 inch round cake pans with cooking spray.
  • To prepare cake, place cake mix, eggs, canola oil, milk, sour cream and pudding into a large mixing bowl. Stir well to combine. Divide cake batter between both cake pans, spreading evenly. Bake for 25-28 minutes until toothpick comes clean when poked in center. Let cool completely then transfer to parchment paper. One of of the cake layers use a long serrated knife to trim the top of the cake to make flat. Place this layer onto bottom of a cake stand.
  • To prepare cookies and cream frosting, place butter and powdered sugar into a large mixing bowl or stand mixer, beat until creamy and smooth. Add Oreo crumbs then splashes of milk as needed to thin as needed. Spread frosting over bottom cake layer that's on the cake stand. Place top cake layer on top of frosting.
  • Melt Ghirardelli white melts in a heat proof bowl in microwave until creamy and smooth. Carefully pour over top of cake drizzling some down the sides. Arrange Oreo Cookies, Nutty Buddy Bars, Star Crunch and Cosmic Brownies on top of cake as desired. Have fun with it! Let chocolate set up before serving.


Calories: 749kcal | Carbohydrates: 111g | Protein: 8g | Fat: 33g | Saturated Fat: 7g | Cholesterol: 93mg | Sodium: 625mg | Potassium: 293mg | Fiber: 2g | Sugar: 82g | Vitamin A: 233IU | Vitamin C: 1mg | Calcium: 137mg | Iron: 5mg