3 c. rhubarb
1/4 c. water
1 1/2 c. sugar
1 tsp. vanilla
2 tbsp. cornstarch
1 1/2 c. oatmeal
1 1/2 c. flour
1 c. brown sugar
1/2 tsp. baking soda
1 c. shortening
1/2 c. nuts

Combine first 5 ingredients above, cook until thick. CRUST: Stir together oats, flour, brown sugar and soda. Cut in shortening. Place 1/2 of crumb mixture in bottom of 9"x12" pan. Pat down. Spread rhubarb filling over top and sprinkle with remaining crumbs. Bake at 350 degrees for 30 minutes.