Frosted Cake

Ingredients

• 2 1/4 cups cake flour
• 2 1/4 teaspoons baking powder
• 4 tablespoons margarine
• 1 1/4 cups sugar
• 4 eggs
• 1 teaspoon vanilla
• 1 tablespoon orange peel
• 3/4 cup low-fat (1 percent) or fat-free milk
• 3 oz low-fat cream cheese
• 2 tablespoons low-fat (1 percent) or fat-free milk
• 6 tablespoons cocoa powder (unsweetened)
• 2 cups sifted confectioners sugar
• 1/2 teaspoon vanilla extract