2 1/2cupsfresh blackberriesYou could use canned, too
TOPPING:
1/2cupbutter or margarine or 1 stick
1/2cupsugar
1/3cupall-purpose flour
1teaspooncinnamon
Instructions
Cream butter, sugar and eggs with mixer. Add rest of the ingredients except blackberries and mix well. Spray a 9 x 13 inch baking dish and spread flour mixture in the bottom of the dish.
Spread blackberries on top of the flour mixture.
Mix together topping ingredients in a bowl except for butter. Sprinkle topping over blackberries. Cut the butter into pieces or pats and spread over the topping. (See photo).
Cook in preheated 375 degree oven for 40 - 45 minutes until brown on top.