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The Best Lemon Buttercream Recipe

4.9 from 328 reviews

A light and fluffy lemon buttercream frosting recipe perfect for cakes, cupcakes, macarons, and pastries. This buttercream is richly flavored with lemon extract, citric acid, and fresh lemon zest, delivering a bright, tangy, and sweet frosting with a creamy, smooth texture and a pale yellow tint.

Ingredients

Scale

Buttercream Ingredients

  • 2 cups unsalted butter, softened
  • 3 cups confectioner’s sugar
  • 1 tsp lemon extract
  • 2 tsp citric acid
  • Lemon zest from 1 to 2 lemons
  • Yellow food color, as desired

Instructions

  1. Softening the Butter: Leave the unsalted butter at room temperature until it is slightly soft to the touch. Make sure it is not melted, runny, or too soft.
  2. Whip the Butter: Place the softened butter into the bowl of a mixer. Whisk on high speed for 6 to 9 minutes until the butter becomes very fluffy, creamy, and takes on a pale creamy color. Frequently scrape down the sides of the bowl to ensure even whipping.
  3. Add Sugar: Gradually add the confectioner’s sugar to the whipped butter. Start whisking on low speed to incorporate the sugar fully, then increase to high speed and whisk for another 3 to 4 minutes until the frosting is light and fluffy.
  4. Incorporate Flavors and Color: Add the lemon extract, citric acid, lemon zest, and yellow food coloring to the buttercream. Whisk the mixture for about 30 seconds, scrape down the bowl sides, then whisk again for another 30 seconds to evenly distribute the flavors and color.
  5. Ready to Use or Store: This buttercream is ready to frost a three-layer 8-inch cake, a two-layer 9-inch cake, or 24 cupcakes. It can also be used as filling for macarons or pastries. Store covered in the refrigerator for up to 1 week.

Notes

  • For a more intense citrus flavor, use fresh lemon zest rather than lemon juice.
  • The butter should be softened but not melted for optimal whipping texture.
  • If you don’t have citric acid, it is recommended to use lemon zest instead of lemon juice to avoid adding too much liquid.
  • This buttercream holds well in the refrigerator for up to one week when covered.
  • Yellow food coloring is optional and can be adjusted depending on your desired shade.

Keywords: lemon buttercream, buttercream frosting, lemon frosting, cake frosting, cupcake frosting, lemon dessert, lemon buttercream recipe