A Very Happy Birthday Cake

This easy Happy Birthday Cake is what I call A Very Happy Birthday Cake! A simple chocolate cake recipe topped with Oreo cookies, chocolate wafers and Cosmic brownies. It’s perfect for celebrating your any boy or girl’s special day!

happy birthday cake

Happy Birthday Cake

This happy birthday cake is simple to prepare and uses some nostalgic favorites from my childhood such as Nutty Buddy Bars, Star Crunch, Cosmic Brownies and Oreos. It’s fun and brings a smile to the whole party!

Be sure to try my Chocolate Peanut Cake recipe too! Follow Picky Palate on Instagram for daily recipe inspiration.

happy birthday cake

Happy Birthday Cake Ingredients

  • Devils Food Cake Mix
  • eggs
  • canola oil
  • milk or heavy cream
  • sour cream
  • instant chocolate pudding mix
  • softened butter, salted
  • powdered sugar
  • milk 
  • Oreo Cookies
  • Ghirardelli White Melts
  • Nutty Buddy Bars
  • Star Crunch
  • Cosmic Brownies

happy birthday cake

How To Make a Chocolate Happy Birthday Cake

  1. Preheat oven to 350 degrees F. and spray two 9 inch round cake pans with cooking spray. 
  2. 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.
  3. 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.
  4. 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. 

happy birthday cake

How to Make Cookies and Cream Frosting

  1. 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.

How to Assemble Your Birthday Cake

Putting this Happy Birthday Cake together is easy! Follow these simple steps to make the best birthday cake ever.

happy birthday cake

Place frosting on bottom cake layer and spread evenly.

happy birthday cake

One of our favorite cookies and cream frosting recipes!

happy birthday cake

Carefully place top cake layer over filling, matching top and bottom layers.

happy birthday cake

Melt Ghirardelli melts until smooth and slowly pour over top of cake drizzling down the sides slightly.

happy birthday cake

Take Nutty Buddy Bars, Oreos, Cosmic Brownies and Star Crunch halves and arrange over top of cake.

How To Serve Happy Birthday Cake

Serve birthday cake as slices on individual plates and a scoop of ice cream if desired. Store any leftover cake slices in an airtight container for up to 3 days in the refrigerator.

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
Prep Time 10 mins
Cook Time 25 mins
Total Time 35 mins
Servings: 8
Calories: 749kcal
Author: Jenny
Cost: $20
Print Pin Rate

Equipment

  • Oven
  • Bowl
  • cake pans

Ingredients

  • 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

Instructions

  • 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.

Nutrition

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
Keywords: birthday cake, chocolate cake, Cookies and Cream, happy birthday cake

Pin Happy Birthday Cake!

happy birthday cake

 

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