1. Stir together flour, baking powder and salt. Set aside. 2. In large mixing bowl, beat together margarine and sugar until light and fluffy. Add egg, vanilla, milk and lemon peel. Beat well. Add flour mixture, mixing until combined. Shape level tablespoon of dough into balls. Roll in KELLOGG'S® RICE KRISPIES cereal. Place 2 inches apart on ungreased baking sheet. Flatten slightly. 3. Bake at 375° F about 14 minutes or until lightly browned around edges. Remove from baking sheets and cool on wire racks. Store in airtight container.