4 c diced rhubarb
1 c sugar, heaping
4 tbsps flour
1 c brown sugar
¾ c rolled oats
1 ½ c flour
½ c butter
½ c shortening — or butter

Combine rhubarb, sugar, and 3 T. flour and place in greased 8×12 baking dish. Combine brown sugar, oats, and 1 ½ c. flour, cut in butter and shortening, and sprinkle over rhubarb. Bake at 375 for 35-40 minutes.