Apple Rhubarb Crunch (1992)

Ingredients 
Filling
2 heaping cups sliced apples, should also probably be peeled
2 heaping cups chopped rhubarb 
3/4 cup white sugar
2 tablespoons tapioca or corn starch
1 cup water
1/2 tablespoon vanilla
Topping
1 cup flour
1 cup brown sugar
3/4 cup oatmeal
1 teaspoon cinnamon
1/2 cup melted margarine

Preparation
grease 8x12 glass pan
disperse apples and rhubarb evenly in pan
mix sugar, tapioca/cornstarch, water, and vanilla in sauce pan, cook until thick and clear
pour mix over apples
for topping, mix flour, brown sugar, oatmeal, and cinnamon, then add margarine
sprinkle topping evenly over filling

Baking Directions
bake at 350 for 40-50 minutes

Notes/Memories
You may replace the apple/rhubarb filling with solely 4-5 cups of apples or solely 4-5 cups of rhubarb, depending on your preference.