White on White Buttermilk Cake with Jack Daniels Buttercream on BakeSpace.com

Ingredients

• Cake:
• 1 1/2 cups unsalted butter, at room temperature
• 2 1/3 cups sugar
• 3 large egg whites
• 2 tsp. vanilla extract
• 3 cups cake flour
• 3/4 tsp. baking soda
• 3/4 tsp. salt
• 1 1/2 tsp. baking powder
• 1 1/2 cups buttermilk
• Buttercream:
• 3 large eggs
• 4 large egg yolks
• 1/2 cup water
• 2 cups sugar
• 3 cups unsalted butter, at room temperature
• 1/2 tsp. salt
• 3 Tbsp. Jack Daniels whiskey