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The Best Classic Vanilla Buttercream Frosting: Creamy and Fluffy

A large, fluffy mound of freshly made vanilla buttercream frosting sitting on a white plate.

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Learn how to make the best classic vanilla buttercream frosting. This American buttercream is smooth, incredibly fluffy, and perfect for piping on cakes and cupcakes. It comes together quickly with simple ingredients.

Ingredients

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  • 1 cup unsalted butter, softened to room temperature
  • 4 cups powdered sugar, sifted
  • 1 teaspoon pure vanilla extract
  • 2 to 4 tablespoons heavy cream or milk
  • Pinch of salt

Instructions

  1. Place the softened butter into the bowl of a stand mixer fitted with the paddle attachment. Beat the butter on medium speed until it is completely smooth and creamy, about 2 minutes. Scrape down the sides of the bowl.
  2. Gradually add the sifted powdered sugar, one cup at a time, mixing on low speed until just combined after each addition.
  3. Add the vanilla extract and the pinch of salt. Increase the mixer speed to medium-high and beat for 3 minutes until the mixture is light and fluffy.
  4. Add the heavy cream or milk, one tablespoon at a time, beating well after each addition until you reach your desired smooth, pipeable consistency. If the frosting seems too thick, add more liquid by the teaspoon. If it is too thin, add more powdered sugar by the quarter cup.
  5. Beat on high speed for a final 1-2 minutes to incorporate air, making the frosting extra fluffy. Use immediately for frosting cakes or cupcakes.

Notes

  • For the creamiest texture, make sure your butter is truly at room temperature, not melted.
  • If you need a stiffer frosting for detailed piping, use less liquid or add a little more powdered sugar.
  • If the frosting seems too soft after mixing, chill it in the refrigerator for 15 minutes before using it for decorating.
  • This recipe makes enough frosting to generously cover one 9-inch layer cake or about 18 cupcakes.

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