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+ servings

Root Beer Cake

This Root Beer Cake is such a fun dessert! With root beer in the batter AND in the frosting, it's a party when this cake is served!
Course Dessert
Cuisine American
Prep Time 15 minutes
Cook Time 32 minutes
Total Time 47 minutes
Servings 12 servings
Calories 339kcal


For the cake:

  • 1 cup sugar
  • 1/2 cup butter room temperature
  • 2 eggs
  • 2/3 cup root beer
  • 2 cups flour
  • 1 tbsp baking powder
  • 1 tsp salt

For the frosting:

  • 1/4 cup butter room temperature
  • 1/8 tsp salt
  • 2 cups powdered sugar
  • 2 tbsp root beer
  • 3 tbsp milk


  • In a large mixing bowl, beat together butter, sugar, and eggs. Add in root beer, flour, baking powder and salt. Beat until well combined.
  • Pour into a greased 8 x 8 square baking dish. Bake at 375 for 32 - 35 minutes or until a knife inserted in the center comes out clean. Cool completely.
  • For the frosting, beat together butter, salt, sugar, and root beer. Add milk gradually until you have a slightly thin buttercream. Pour/spread over cooled cake and allow frosting to set. Slice and serve.


Calories: 339kcal | Carbohydrates: 54g | Protein: 3g | Fat: 12g | Saturated Fat: 7g | Cholesterol: 58mg | Sodium: 335mg | Potassium: 138mg | Sugar: 38g | Vitamin A: 400IU | Calcium: 58mg | Iron: 1.2mg