1/2 c. butter
1 pkg. white cake mix
2 (20 oz.) cans blueberry pie filling
Chopped walnuts

Heat oven to 350 degrees. Cut butter into cake mix until dry and crumbly. Reserve 1 cup for topping!

Pat remainder in ungreased 9x13 inch pan. Build up 1/2 inch of edge. Spread filling to 1/2 inch of edge. Sprinkle topping with chopped walnuts.

Bake 45-50 minutes. Serve with ice cream.

Serves 12-15.