Rhubarb Crunch - cooking recipe

Ingredients

1 c. flour
3/4 c. oatmeal
1 c. brown sugar
1/2 c. melted butter
1 tsp. cinnamon
4 c. rhubarb
1 c. sugar
2 tsp. cornstarch
1 c. water
1 tsp. vanilla

Preparation

Mix together the first 5 ingredients until crumbly.
Put half the crumbs in a 9-inch pie pan.