Martha Stewart's Sprinkle Cake - Pantry Vault

Ingredients

• 2.5 cups Cake Flour
• 0.75 cups All-Purpose Flour
• 1 tbsp Baking Powder
• 1 tsp Baking Soda
• 0.75 tsp Salt
• 0.5 cups Butter
• 0.5 cups Shortening
• 1.75 cups Sugar
• 1 Egg
• 2 tbsp Vanilla
• 0.5 cups Buttermilk
• 0.5 cups Milk
• 1 cup Water
• 3 Egg White
• Sprinkles