Transfer mixture to large bowl. Add brown sugar and beat until blended. Stir in dry ingredients until just mixed. Drop batter by tablespoonfuls onto prepared sheets, spacing evenly. Bake until cookies feel firm to touch, about 10 minutes.
Transfer cookies to rack and cool.
Drizzle warm icing decoratively over cookies. Remove from heat. Whisk in powdered sugar. Makes 3 Dozen. All rights reserved.