How to Make Custard Buttercream - A Step-by-Step Guide

Rich, creamy, and oh-so-delicious, custard buttercream is a luxurious frosting that will take your cakes and cupcakes to the next level. This recipe combines the velvety smoothness of custard with the light and fluffy texture of buttercream, resulting in a decadent topping that is just as delightful to eat as it is to look at.

Perfect for special occasions and everyday indulgence, custard buttercream is the ideal frosting for any dessert lover. Whether you're celebrating a birthday, h...

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Ingredients

  • 1 egg
  • 1 cup white sugar
  • ½ cup milk
  • 1 ⅓ cups unsalted butter, at room temperature
  • 1 tablespoon rum (Optional)
  • 1 teaspoon vanilla extract

Information

  • Prep Time: 15 mins
  • Cook Time: 10 mins
  • Additional Time: 1 hr
  • Total Time: 1 hr 25 mins
  • Servings: 24
  • Yield: 24 servings

  • Beat egg with a fork in a small, heavy saucepan. Mix in sugar and milk. Heat on medium-low heat, whisking constantly, until it just starts to boil. Continue beating rapidly until mixture thickens to a thin custard consistency. Remove from heat and cool completely, about 1 hour.
  • Beat butter in a bowl with an electric mixer until light and creamy, about 5 minutes. Add cooled custard, 1 to 2 tablespoons at a time, beating well after each addition. Beat in rum and vanilla extract. Keep beating until buttercream is very light and fluffy.
  • Nutrition

    130 cal.

    • Total Fat: 11g
    • Saturated Fat: 7g
    • Cholesterol: 35mg
    • Sodium: 6mg
    • Total Carbohydrate: 9g
    • Total Sugars: 9g
    • Protein: 1g
    • Calcium: 10mg
    • Potassium: 14mg