1Heat oven to 350°F. In large bowl, stir cookie mix, coconut, lime peel, lime juice, butter and egg until soft dough forms.
2Drop dough by level tablespoonfuls 2 inches apart onto ungreased cookie sheets.
3Bake 9 to 13 minutes or until edges are light golden brown. Cool 1 minute; remove from cookie sheet. Cool completely, about 15 minutes.
4With small strainer, sift powdered sugar over cooled cookies. Store covered at room temperature.