Star Spangled Banner Cake

2 (18.25 ounce) boxes white or yellow cake mix
Strawberry or raspberry jam
Fresh strawberries or raspberries
Prepared white icing
1 pint blueberries

Prepare two 9 x 13-inch layers white or yellow cake.

Spread strawberry or raspberry jam on one layer, then stack the second layer on top. Frost with white icing and make stripes, using halved strawberries or whole raspberries. Leave room for field of blueberries. Make field of blueberries and use miniature marshmallows or whipped cream for the stars.