Ingredients

Instructions

  1. Mix flour, rolled oats, brown sugar, margarine and cinnamon until crumbly: Press half of this mixture into a 9" greased pan.
  2. Cover with chopped rhubarb.
  3. Combine sugar, cornstarch, and water.
  4. Cook until thick and clear in a small saucepan.
  5. Remove from heat and add vanilla.
  6. Pour over rhubarb. Top with remaining crumbs.
  7. Bake at 350°F for 1 hour.