Blueberry Crunch Cake - cooking recipe

Ingredients

1 can crushed pineapple (I use the large unsweetened kind)
3/4 c. sugar
1 stick margarine
1/4 c. sugar
3 c. blueberries
1 box yellow cake mix (I use Duncan Hines)
1 c. nuts

Preparation

Grease oblong pan (9 x 13-inch).
Pour in pineapple.
Add blueberries and 3/4 cup sugar.
Pour on dry cake mix.
Melt margarine and pour over cake mix.
Sprinkle on nuts and remaining sugar.
Bake 35 to 40 minutes at 350\u00b0.
Wait at least 25 minutes to cut.
(About midway cooking time, cut slits in cake to allow juices to come to the top of the cake.)