Star Spangled Banner Lemon Bars



1 16-1/2 oz. pkg. lemon bar mix

1/4 cup powdered sugar

1 .68-oz. tube red decorating gel

1/4 cup blueberries


Prepare lemon bars as directed on package; bake in an ungreased 9″x9″ baking pan. Cool completely in pan on a wire rack. Cut into 6 rectangular bars. Place bars on a serving plate. Sprinkle with powdered sugar. Pipe stripes across bars with decorating gel. Place 6 blueberries in the top corner of each bar.