1 box Duncan Hines butter recipe mix
1 can blueberry filling

ICING:

1/2 c. sugar
1/2 c. confectioners sugar
1 (8 oz.) pkg. cream cheese
1 lg. Cool Whip

Bake your layers following Duncan Hines recipe directions. Cream sugars with cream cheese. Next add Cool Whip to make your icing. Ice cake layers; spread blueberry filling between layers. Last, top cake with blueberry filling.