PREPARATION:
- Preheat oven to 375°F.
- Combine flour, baking powder and salt in small bowl; set aside. Beat butter and granulated sugar in large bowl with electric mixer at medium speed until light and fluffy. Beat in egg, 1 tablespoon lemon peel and vanilla until well blended. Gradually beat in flour mixture at low speed until blended.
- Drop dough by level 1/4 cupfuls onto ungreased cookie sheets, spacing 3 inches apart. Flatten dough until 3 inches in diameter with bottom of glass that has been dipped in additional granulated sugar.
- Bake 12 to 14 minutes or until cookies are just set and edges are golden brown. Cool on cookie sheets 2 minutes; transfer to wire racks. Cool completely.
- Combine powdered sugar, lemon juice and remaining 1 tablespoon lemon peel in small bowl; drizzle over cookies. Let stand until icing is set.
