Yellow Sheet Cake With Chocolate Frosting  | 
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                                            Prep Time: 30 Minutes Cook Time: 30 Minutes  | 
                                            Ready In: 60 Minutes Servings: 18  | 
                                         
                                        
                                     
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                    From Cooking Light (May 2005) Ingredients: 
                    
                        
                                                cooking spray  |  
                                                1 tablespoon flour  |  
                                                1/2 cup butter, melted  |  
                                                1 (8 ounce) carton nonfat sour cream  |  
                                                1 1/2 cups sugar  |  
                                                2 teaspoons vanilla extract  |  
                                                1/2 cup egg substitute (or 2 eggs)  |  
                                                2 cups flour  |  
                                                1 teaspoon baking soda  |  
                                                1/2 teaspoon salt  |  
                                                3/4 cup low-fat buttermilk  |  
                                                1/2 cup block-style fat free cream cheese, softened  |  
                                                1/4 cup butter, softened  |  
                                                1 teaspoon vanilla extract  |  
                                                1/3 cup unsweetened cocoa  |  
                                                1 -2 tablespoon fat-free evaporated milk  |  
                                                1/8 teaspoon salt  |  
                                                3 cups powdered sugar, divided  |  
                                                
                     
                    Directions: 
                    
                        
                            
                                1. Preheat oven to 350°. 2. Coat bottom only of a 13 x 9-inch baking pan with cooking spray; line bottom of pan with wax paper. Coat wax paper with cooking spray; dust with 1 tablespoon flour. Set aside. (If you plan to serve the cake straight from the pan instead of unmolding it, you can skip the wax paper step.). 3. Cake: Stir 1/2 cup butter and sour cream with a whisk until well blended. 4. Add granulated sugar and 2 teaspoons vanilla; beat at medium speed 3 minutes or until well blended. 5. Add egg substitute; beat 2 minutes or until well blended. 6. Stir 2 cups flour, baking soda, and 1/2 teaspoon salt well with a whisk. 7. Add flour mixture and buttermilk alternately to sugar mixture, beginning and ending with flour mixture; mix after each addition. 8. Pour batter into prepared pan. Sharply tap pan once on counter to remove air bubbles. 9. Bake for 30 minutes or until a wooden pick inserted in center comes out clean. 10. Cool in pan 10 minutes on a wire rack; remove from pan. 11. Carefully peel off wax paper; cool completely on wire rack. 12. Frosting: Beat the cream cheese, 1/4 cup butter, and 1 teaspoon vanilla at high speed until fluffy. 13. Add cocoa, milk, and 1/8 teaspoon salt; beat at low speed until well blended. 14. Gradually add 1 1/2 cups powdered sugar; beat at low speed until creamy. 15. Gradually add remaining 1 1/2 cups powdered sugar. 16. Place cake on a serving platter. Spread frosting over top and sides of cake. 17. Store cake loosely covered in the refrigerator.                              | 
                         
                         
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