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Root Beer Layer Cake

Print Recipe
Prep Time 40 minutes
Cook Time 20 minutes
Cooling Time 2 hours
Total Time 3 hours
Course Dessert
Servings 1 layer cake

Ingredients
  

Cake

  • 2 cups flour
  • 1 Tbsp baking powder
  • 3/4 tsp kosher salt
  • 1 + 1/3 cups butter
  • 1 cup sugar
  • 1/3 cup Root Beer Syrup (concentrated syrup for making drinks, like Soda Stream)
  • 4 eggs
  • 1/2 cup whole milk

Frosting

  • 1 cup butter (softened to room temperature)
  • 4 cups icing sugar
  • 2 tsp vanilla
  • 3 Tbsp boiling water
  • 1/4 cup Root Beer Syrup
  • 1/2 tsp salt

Instructions
 

Cake

  • Cream butter and sugar together until pale and fluffy. Add the root beer syrup and blend well. Add eggs one at a time, blending fully between each egg.
  • Mix flour, baking powder and salt together. Alternate adding the flour mixture and the milk into the butter mixture, in approximately three separate parts. Mix until the batter is just mixed.
  • Split the batter into prepared cake tins (2 or 3, 9" cake rounds) and bake at 350ºF/175ºC until toothpick comes out clean (18-20 minutes if split into 3 tins, 22-25 minutes if split into 2 tins). Let cool 5 minutes, then remove from tins and allow to cool fully.

Frosting

  • Beat butter until pale and fluffy. Add 1 cup of icing sugar, vanilla and salt and beat well. Add remaining icing sugar, mixing until mostly mixed. Will be dry. Add boiling water one tablespoon at a time, mixing in between additions. Add the root beer syrup and mix well. Once mixed, turn the speed up to high and beat until smooth and fluffy.
  • Frost the cake, adding a generous amount of frosting between each layer of cake.
  • Serve.
Keyword Cake, Dessert, Layer Cake, Root Beer