Blueberry Cake
["1 box Duncan Hines yellow butter cake mix", "1/2 c. sugar", "1/2 c. powdered sugar", "1 (8 oz.) Cool Whip", "1 (8 oz.) cream cheese", "1 can blueberry pie filling"]
["Make cake mix and bake in 3 round layer pans as directed. Cool.", "Mix all other ingredients (except blueberries) and ice each layer alternately with blueberry filling."]
["cake mix", "sugar", "powdered sugar", "cream cheese", "blueberry pie filling"]