Butterbeer Cake in a Mug

This homemade recipe for Harry Potter Butterbeer Cake in a Mug is made in the microwave and as easy as magic! A perfect dessert for a Harry Potter birthday party.
Course: Dessert
Cuisine: American
Keyword: cake, dessert
Prep Time: 15 minutes
Cook Time: 2 minutes
Total Time: 17 minutes
Servings: 1
Calories: 1669kcal
Author: Amy Locurto


Butterbeer Cake

  • 1/3 Cup Flour
  • 1/4 Cup Sugar
  • 1/4 Teaspoon Baking powder
  • 1/8 Teaspoon Salt
  • 1/4 Cup Buttermilk
  • 1 Teaspoon Cream Soda
  • 1/2 Teaspoon  vanilla extract
  • 2 tablespoon Melted Butter

Butterbeer Frosting

  • 3 cups powdered sugar
  • 1 cup unsalted butter, room temperature
  • 1/4 teaspoon salt
  • 2 teaspoons vanilla extract
  • 2 tablespoons milk
  • 2 tablespoons butterscotch syrup
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  • Add the cake ingredients to a bowl and mix.
  • Spray a glass mug with cooking spray and pour cake batter into the mug. Bake in the microwave for 2 minutes and 15 seconds.
  • Let the cake cool and make the butterbeer frosting by mixing powdered sugar, butter, salt, vanilla, milk and butterscotch syrup together.
  • Top with cake frosting or scoop out a spoonful of cake and layer the cake and frosting ending with a layer of frosting.
  • Drizzle with syrup and enjoy!


Refrigerate leftover frosting. You'll have enough frosting to make 2-3 Butterbeer mug cakes.


Calories: 1669kcal | Carbohydrates: 191g | Protein: 7g | Fat: 99g | Saturated Fat: 62g | Cholesterol: 264mg | Sodium: 1275mg | Potassium: 226mg | Fiber: 1g | Sugar: 156g | Vitamin A: 3070IU | Calcium: 134mg | Iron: 1.9mg
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