Mix until crumbly:

1 c. flour

¾ c. oatmeal

¾ c. brown sugar

½ c. marg

1 tsp cinnamon

Cook up to 4 c. of diced rhubarn and add:

1 c. suagr

2 T. corn starch

1 c. water

1 tsp vanilla

 

Press half of crumbs in bottom of 9×13 pan.

Pour on rhubarb mixture and top with remaining crumbs

Bake at 375 for 35 min.