In medium bowl, cream together butter and sugar until light and fluffy. Beat in the egg, orange juice concentrate, and orange zest. Combine the flour and baking powder; mix into the fluffy mixture until blended. Stir in cereal. Drop by teaspoonfuls 2 inches apart on ungreased cookie sheet.
Bake 10 to 12 minutes or until edges are golden. Remove from cookie sheet for cooling.