Lemon Cupcake with Lemon Buttercream Frosting

http://www.shugarysweets.com/2012/11/lemon-cupcake-with-lemon-buttercream

Lemon Cupcake with Lemon Buttercream

Yield: about 30 cupcakes

Sweet lemon cupcakes made from my favorite, from scratch, white cake recipe. Topped with a soft lemon buttercream frosting!

Ingredients

For the Cupcakes:
5 egg whites, room temperature
3/4 cup buttermilk
2 lemons, zested
3/4 cup unsalted butter, softened
1 3/4 cup granulated sugar
2 1/2 cup cake flour
1 Tbsp baking powder
1/2 tsp kosher salt
For the Frosting:
1 cup unsalted butter, softened
4 cup powdered sugar
1 lemon, zested and juiced
2 Tbsp heavy cream

Instructions

In small bowl, mix egg whites, 1/4 cup buttermilk and lemon zest. Set aside.
In mixing bowl, beat butter and sugar until creamy, about 2-3 minutes. Add in dry ingredients and mix until combined. Slowly add in egg white mixture. Beat in remaining buttermilk.
Prepare cupcake tins with paper cupcake liners. Fill liners half full and bake in a 350 degree oven for 15 minutes. Remove and cool in pan 5 minutes then transfer to cool completely on a wire rack.
For the frosting, beat butter for 3-5 minutes until pale in color. Add powdered sugar, lemon zest and lemon juice (about 2 Tbsp from fresh lemon) and cream. Beat for 3-5 minutes until fluffy.
Frost cupcakes by filling a pastry bag with tip and pipe on the frosting. ENJOY.