1/2 c. brown sugar
1/2 c. flour
1/2 c. oatmeal
1/3 c. butter
1 can blueberry pie mix

In an 8"x8" greased pan, put one can of blueberry pie mix. Mix first 4 ingredients until crumbly and sprinkle on top of blueberry pie mix. Bake at 350 degrees for 40 to 45 minutes. Serve with whipped cream or ice cream.