1Heat oven to 325°F. Mix 1/4 cup crushed candies and 1/4 cup powdered sugar; reserve. Mix butter, 1/3 cup powdered sugar, 1/4 cup crushed candies and the vanilla in medium bowl. Stir in flour and salt.
2Shape dough by level measuring tablespoonfuls into balls. Place about 2 inches apart on ungreased cookie sheet.
3Bake 12 to 15 minutes or until set but not brown. Immediately remove from cookie sheet; roll in reserved candy mixture. Cool completely on wire rack. Roll in candy mixture again.