Step 1

To prepare cake, grease and flour two 9-inch cake pans and line bottoms with parchment paper (cut circles to fit). Set aside. (or use my homemade cake release).

Step 2

In small bowl, mix egg whites and ¼ cup buttermilk. Set aside.

Step 3

In mixing bowl, beat butter and sugar until creamy, about 2-3 minutes. Beat in vanilla extract. Add in dry ingredients and mix until combined. Slowly add in egg white mixture.

Step 4

Beat in remaining buttermilk for 1-2 minutes until fluffy.

Step 5

Pour evenly into cake pans. Bake in a 350 degree oven for about 25-28 minutes, until toothpick comes out clean. Remove and cool in cake pans 5 minutes. Invert onto a wire rack and cool completely before frosting.

Step 6

For the frosting, beat butter for 3-4 minutes until pale in color. Add powdered sugar, vanilla, and milk. Beat an additional 3-4 minutes until fluffy and smooth!

Step 7

To assemble. Lay one layer of cake on a cake plate. Add frosting to middle layer. Top with second layer of cake. Frost sides and top of cake with remaining frosting.