Great Grandma Anne's Rhubarb Crisp

*Preheat oven to 350

Mix the following ingredients:
2 Cups Brown Sugar
2 Cups Mehl's Gluten-Free All- Purpose Flour
1 and 1/2 Cups Gluten-Free Oatmeal (Bob's Red Mill works well!)
1 Cup Melted Butter
2 tsp Cinnamon

Press half of the resulting crumb mixture into the bottom of a 9X9 pan and cover with 4 cups chopped rhubarb.

Boil the following until thick:
1 Cup Sugar
1 Cup Water
2 T Corn Starch
1 T Vanilla

Pour over rhubarb. Sprinkle with the remaining crumb mixture and bake for 10 to 15 minutes. Enjoy!

Great Grandma Anne's Gluten-Free Rhubarb Crisp