4 c. diced rhubarb
1/2 c. brown sugar
1/3 c. flour
1/3 c. oats
1/2 tsp. cinnamon
3 tbsp. butter

Place rhubarb in buttered 8 x 8 inch dish. Combine rest of dry ingredients and cut in butter. Sprinkle over fruit. Bake at 350 degrees for 30 minutes.