Preheat oven to 350 degrees. Mix 1/2 cup powdered sugar and butter. Stir in baking mix, nuts and almond extract. Mixin enough water to moisten dough. Shape dough into 1-inch balls. Place on ungreaswd cookie sheets. Bake until set, but not brown, 10-12 minutes. Remove from cookie sheets right away. Cool 5 minutes. While warm, roll balls in powdered sugar. Makes about 3 dozen cookies.