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Easy Galaxy Cake

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Quick and easy DIY galaxy cake with lots of sprinkles. This galaxy birthday cake is fun, colorful and perfect for kids' space themed parties.
Course Dessert
Cuisine American
Prep Time 10 mins
Cook Time 40 mins
Decorating time 20 mins
Total Time 1 hr 10 mins
Servings 10 People
Calories 242
Author CakeWhiz


  • 1 box Pillsbury Funfetti® Cake Mix
  • 2 cans Pillsbury white frosting
  • 1 can Pillsbury aqua blue frosting
  • 1 can Pillsbury purple frosting
  • 3/4 cup Sprinkles Galaxy themed
  • 1 box Pillsbury Filled Pastry Bag


  • Prepare the cake, as per box instructions (I made 3 cakes).
  • Allow the cakes to cool down. 
  • Use a sharp knife to cut domes on top of the cake (if any). 
  • Place one cake on a cake stand and frost the top with white icing.
  • Place another cake on top of the icing.  Gently press it down and spread white frosting again. 
  • Place the third cake on top of the icing. Gently press it down and spread white frosting again.
  • Frost the entire cake in white icing. 
  • Use a spatula to spread purple and blue frosting randomly all over the cake. 
  • Use a clean spatula to spread frosting smoothly all over the cake until you have a swirled pattern of beautiful colors. 
  • Toss some sprinkles around the sides of the cake. 
  • Use piping bag to pipe stars around the top of the cake in a circle formation. 
  • Toss some sprinkles in the center of the cake. 
  • Use piping bag to pipe ruffles around the base of the cake. Enjoy!



  • Read all my tips above.
  • Leftovers can be stored in a sealed container in the fridge for up to 3 days. 


Calories: 242kcal | Carbohydrates: 54g | Protein: 1g | Fat: 2g | Saturated Fat: 1g | Sodium: 377mg | Potassium: 24mg | Sugar: 33g | Calcium: 109mg | Iron: 1.1mg