1tablespoongrated lemon rindoptional 1 cup buttermilk
Lemonade Frostingrecipe follows
Instructions
Preheat oven 350°F. Coat two (9-inch) round cake pans with nonstick cooking spray.
In mixing bowl, beat together butter and sugar until well mixed. Add eggs and egg whites, one at a time, beating well after each addition. Add lemonade concentrate and vanilla.
In small bowl, combine flour, baking powder, baking soda, and lemon rind. Add flour mixture and buttermilk alternately to sugar mixture, beginning and ending with flour mixture.
Transfer batter into prepared pans. Bake 18-20 minutes or until wooden pick inserted in center comes out clean. Cool layers on wire racks. Ice with Lemonade Frosting (see recipe).