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Custard Buttercream Frosting Filling

Ingredients

  • 1 cup unsalted butter, room temperature
  • 4 cups powdered sugar *also known as icing sugar or confectioner's sugar
  • 2 Tbsp custard powder
  • 5 Tbsp hot water

Instructions

  • In a stand mixer fitted with a paddle attachment, cream the butter, powdered sugar and custard powder on medium-high speed until pale in color.
  • Using a plastic baking spatula, scrape down the sides of the bowl and add the hot water. Beat the mixture on medium speed until the filling icing is light and fluffy.