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Light and Lovely Lemon Cupcakes with Lemon Buttercream

Ashley Manila
5 from 1 vote
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Course Dessert
Cuisine American

Ingredients
 

For the cupcakes:

  • 1 3/4 cups cake flour
  • 1 1/2 teaspoons baking powder
  • 1/4 teaspoon salt
  • 1/2 cup sour cream (I used full fat)
  • 1/2 cup milk (I used whole)
  • 2 large egg whites, at room temperature
  • 1 stick (4 ounces) unsalted butter, melted
  • 1 cup granulated sugar
  • 1 tablespoon fresh lemon juice
  • Zest of one lemon (about 2 teaspoons)

For the Lemon Buttercream:

  • 2 sticks unsalted butter (very soft)
  • 4-5 cups confectioners sugar
  • 1 teaspoon lemon juice
  • 1 teaspoon lemon zest
  • 2 tablespoons heavy cream

Instructions
 

  • Preheat oven to 350 degrees (F). Line a 12 mold muffin tin with paper liners; set aside.
  • In a medium bowl combine flour, baking powder, and salt; mix well to combine. Set aside.
  • In a large measuring cup or bowl combine sour cream, milk, and egg whites; mix well to combine. Set aside.
  • In a large bowl or stand mixer fitted with the paddle attachment beat melted butter and sugar on medium speed until well combined; about 2 minutes. Add lemon juice and lemon zest and beat for another minute on medium speed. Slowly add the flour mixture to the butter/sugar combination, beating until just combined. Add in sour cream/milk/egg combo and beat on low until *just combined. Over-mixing will result in a dryer/denser cake.
  • Divide the cupcake batter evenly into the 12 molds, then place the pan in the oven. Bake for 18-20 minutes, or until a toothpick inserted into the center of a cupcake comes out clean. Allow cupcakes to cool completely before topping with frosting.

To make the Lemon Buttercream:

  • Beat butter until light and fluffy. Slowly, add 4 cups of sugar, beating on low until well combined. Add in lemon juice, zest, and cream; beat until combined. Add additional confectioners sugar as needed, stopping when you've reached your desired consistency. Place frosting in piping bag, or simply slather onto cooled cupcakes.
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