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Smooth white buttercream frosting for sugar cookies in a piping bag

Classic Buttercream Frosting for Sugar Cookies

This classic buttercream frosting is perfect for decorating sugar cookies, offering a smooth, airy, and pipeable consistency with a delightful vanilla flavor.
Prep Time 10 minutes
Total Time 10 minutes
Servings 24 cookies
Calories 150 kcal

Equipment

  • Large bowl
  • Electric mixer
  • Stand mixer (optional)

Ingredients
  

Main Ingredients

  • 1 cup unsalted butter softened
  • 4 cups confectioners' sugar (about 1 pound)
  • 2-4 tablespoons milk or heavy cream
  • 1 teaspoon vanilla extract
  • salt Pinch of

Instructions
 

Preparation

  • In a large bowl, beat the softened butter with an electric mixer until creamy and pale, which takes about 2-3 minutes.
  • Slowly add the confectioners' sugar, one cup at a time, mixing on low speed until fully incorporated; then beat on medium-high for 3-5 minutes until light and fluffy, scraping the bowl as needed.
  • Reduce speed to low and mix in the milk or cream and vanilla extract until just combined.
  • Increase mixer speed to medium-high and beat for another 2-3 minutes to achieve a smooth and airy consistency; adjust thickness with more milk/cream or confectioners' sugar as needed.
  • Optionally, divide the frosting and add gel food coloring a small amount at a time, mixing until your desired shade is reached.

Notes

For best results, ensure your butter is truly softened to room temperature before creaming. Always scrape down the sides of the bowl to ensure all ingredients are well incorporated for a smooth frosting.