Rhubarb Butter Crunch

Ingredients

 * 4 c rhubarb -- diced
 * 1 c sugar -- heaping
 * 4 tbsps flour
 * 1 c brown sugar
 * 3/4 c rolled oats
 * 1 1/2 c flour
 * 1/2 c butter
 * 1/2 c shortening -- or butter

Directions

 * 1) Combine rhubarb, sugar, and 3 T. flour and place in greased 8x12 baking dish.
 * 2) Combine brown sugar, oats, and 1 1/2 c. flour, cut in butter and shortening, and sprinkle over rhubarb.
 * 3) Bake at 375 for 35-40 min.