PREHEAT oven to 350°F.
BEAT butter and sugar with electric mixer until creamy. Add egg and orange peel; beat until well blended.
STIR in flour and baking powder; mix well. Stir in cereal. Drop level tablespoonfuls of dough onto ungreased baking sheet.
BAKE for 12 min. or until lightly browned. Cool on baking sheet for 2 min. before removing to wire racks to cool completely.