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a piped swirl of lime frosting in a glass cup.

Lime Buttercream Frosting Recipe

Course: Frosting
Cuisine: American
Prep Time: 7 minutes
Total Time: 7 minutes
Servings: 40 servings
Calories: 131kcal
Author: Becky Hardin
This zesty lime buttercream frosting is the ultimate way to add a bright, tangy twist to your favorite desserts. Made with fresh lime juice and zest!
Print Recipe

Equipment

  • Kitchen Scale (optional)
  • Stand Mixer
  • Microplane Zester
  • Piping Tip Set (optional)

Ingredients

  • cups unsalted butter room temperature (3 sticks)
  • 6 cups powdered sugar
  • 2 tablespoons fresh lime juice room temperature (from 1 large lime)
  • 2 teaspoons lime zest (from 1 large lime)
  • teaspoon kosher salt

Instructions

  • In the bowl of a stand mixer fitted with the paddle attachment, combine all of the ingredients except for the lime juice and zest. Beat on low until the powdered sugar is about halfway incorporated, about 1 minute.
    1½ cups unsalted butter, 6 cups powdered sugar, ⅛ teaspoon kosher salt
    powdered sugar, butter, and salt in a stand mixer bowl.
  • Increase the mixer speed to medium high and beat for another 30 seconds before increasing it to high. Beat for 3-4 minutes to allow the powdered sugar to dissolve into the butter and for it to get fluffy.
    beaten buttercream frosting in a stand mixer bowl.
  • Add the lime juice and zest, and continue mixing on low speed, just until the lime is incorporated.
    2 teaspoons lime zest, 2 tablespoons fresh lime juice
    beaten buttercream topped with lime zest in a stand mixer bowl.
  • Frost your cupcakes or cake and enjoy! (We love to use this frosting on these fun Pinata Cupcakes)

Notes

Yield: This recipe makes enough to frost 24 cupcakes with a standard swirl or one 9-inch double-layer cake.
  • Start your stand mixer on low before increasing it to a high speed. If you start it high, you will get clouds of powdered sugar all over your kitchen.
  • Use fresh lime juice rather than bottled for the zingiest flavor. For a milder lime flavor, you can leave out the zest.
  • If the frosting appears curdled after adding the lime juice, continue beating on medium-high for 2 additional minutes. The friction will warm the fats slightly and help the emulsion come back together.
  • I used an open star piping tip in all of these photos.
Storage: Store lime buttercream in an airtight container in the refrigerator for up to 1 week or in the freezer for up to 6 months.

Nutrition

Serving: 3tablespoon | Calories: 131kcal | Carbohydrates: 18g | Protein: 0.1g | Fat: 7g | Saturated Fat: 4g | Polyunsaturated Fat: 0.3g | Monounsaturated Fat: 2g | Trans Fat: 0.3g | Cholesterol: 18mg | Sodium: 9mg | Potassium: 3mg | Fiber: 0.01g | Sugar: 18g | Vitamin A: 213IU | Vitamin C: 0.3mg | Calcium: 2mg | Iron: 0.01mg