3/4 c. soft butter
1 c. brown sugar
1/2 tsp. salt
1 3/4 c. flour
1 1/2 c. oatmeal
1/2 tsp. baking soda

Mix well, divide in half and place one-half mixture in 9"x13" pan. Make filling of the following and put over crust.

2 1/2 c. rhubarb, cut up
1 c. sugar
2 tbsp. cornstarch
3/4 c. water
3 tbsp. lemon juice
1 tbsp. cinnamon

Place second half of crust mixture over filling and bake at 325 degrees for 30 minutes.