How To Make An Exploding Sprinkle Cake || Erin Brighton | birthday cakes | baking | cake decorating | kid birthday cakes | gluten free baking

How To Make An Exploding Sprinkle Cake

Follow these easy directions to make a fun, exploding sprinkle cake! 

Course Dessert
Cuisine Dessert
Prep Time 30 minutes
Cook Time 40 minutes
Total Time 1 hour 30 minutes
Servings 10 servings
Calories 568 kcal
Author Erin Brighton


Exploding Sprinkle Cake

  • 2 cakes gluten-free (or regular), 4 layers
  • 1 batch buttercream frosting
  • 1 1/2 cup rainbow sprinkles
  • 1 cup M&Ms

Easy Buttercream Frosting

  • 1/2 c butter, softened
  • 1/2 c shortening
  • 4 c powdered sugar
  • 1 t vanilla extract (optional)
  • 2 T milk approximately


  1. Bake and cool for gluten-free cake layers. Cut the domes off the tops so that the layers will lay flat. 

  2. Prepare buttercream frosting.

  3. Cut circles in 3 cake layers using biscuit cutter or similarly sized glass directly in the middle of the cake.

  4. Stack layers, one at a time, lightly frosting between each layer. Add sprinkles. 

  5. After three layers have been stacked, fill the hole in the middle with sprinkles and M&Ms.

  6. Top the cake with the fourth layer. If necessary, lightly frost the entire cake, stick in the fridge for frosting to harden for about 10 to 15 minutes, and then finish frosting the cake with the buttercream frosting.

  7. When cake is completely covered in buttercream, cover the entire cake liberally with sprinkles. Use your hands. Scoop the sprinkles into your hands and press into the frosting. Retrieve fallen sprinkles and keep repeating until cake is completely covered.