How to Bake Vanilla White Cake with Creamy Frosting

Ingredients

• 2 ½ cups all-purpose flour
• 2 ½ tsp baking powder
• ½ tsp salt
• 1 cup unsalted butter, softened
• 2 ½ cups granulated sugar
• 5 large egg whites, room temperature
• 1 Tbsp pure vanilla extract
• 1 ½ cups whole milk, room temperature
• 1 cup unsalted butter, softened for frosting
• 4 cups powdered sugar
• ¼ cup heavy cream
• 1 tsp pure vanilla extract for frosting
• Pinch of salt for frosting