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Ultimate Fluffy & Stable Vanilla Buttercream Frosting

A generous slice of white cake topped high with fluffy, piped vanilla buttercream frosting on a white plate.

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This recipe provides instructions for making a classic American vanilla buttercream that is creamy, fluffy, and stable enough for piping and decorating cakes and cupcakes.

Ingredients

Scale
  • 1 cup (2 sticks or 226g) unsalted butter, softened to room temperature
  • 4 cups (480g) powdered sugar, sifted
  • 1 teaspoon pure vanilla extract
  • 3 to 4 tablespoons heavy cream or milk
  • 1/4 teaspoon salt

Instructions

  1. Place the softened butter in 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 incorporated after each addition. Stop and scrape down the bowl frequently.
  3. Once all the sugar is added, increase the mixer speed to medium-high. Beat for 3 minutes until the mixture is lightened in color and fluffy.
  4. Add the vanilla extract and salt. Mix to combine.
  5. Add the heavy cream or milk, starting with 3 tablespoons. Beat on medium-high speed for another 3 to 5 minutes until the frosting is light and fluffy. If the frosting seems too stiff, add the remaining tablespoon of cream, one teaspoon at a time, until you reach your desired piping consistency.
  6. Use immediately for frosting cakes, cupcakes, or cookies.

Notes

  • For the best texture, ensure your butter is truly softened but not melted.
  • Sifting the powdered sugar prevents lumps and grit in your final frosting.
  • If your frosting seems too soft after mixing, chill it in the refrigerator for 15 minutes, then re-whip it briefly before using.
  • If you need a very stiff frosting for detailed piping, use less cream or substitute one tablespoon of cream with one tablespoon of shortening.

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