Combine first 6 ingredients in a bowl, and stir well. Set aside.
Place brown sugar, margarine, molasses, and egg white in a food processor, and process until blended.
Add dry ingredients to food processor, and process until blended, scraping sides of processor bowl once. Gently press mixture into a ball; wrap in plastic wrap. Chill 2 hours.
Preheat oven to 37
Shape dough into 40 (3/4-inch) balls.
Place granulated sugar in a bowl. Dip balls in cold water; shake to remove excess moisture.