Yellow Sheet Cake with Chocolate Frosting Recipe - USA

Ingredients

• cooking spray
• 1 tbsp flour
• 1/2 cup melted butter
• 1 (8 oz) carton non-fat sour cream
• 1 1/2 cups sugar
• 2 tsp vanilla extract
• 1/2 cup egg substitute (or 2 eggs)
• 2 cups flour
• 1 tsp baking soda
• 1/2 tsp salt
• 3/4 cup low-fat buttermilk
• 1/2 cup softened block-style fat-free cream cheese
• 1/4 cup softened butter
• 1 tsp vanilla extract
• 1/3 cup unsweetened cocoa
• 1 – 2 tbsp fat-free evaporated milk
• 1/8 tsp salt
• 3 cups powdered sugar, divided