In
large saucepan place rhubarb and water. Stir together
sugar & flour; add to rhubarb. Cook over medium heat
till boiling. Reduce heat and simmer, partially covered
until rhubarb is tender (about 5 minutes, don't let
it get mushy). Set aside.
Combine
butter, sugar, flour & oats for topping. Blend until
mixture resembles coarse crumbs.
Spread
filling in pastry shell, cover with topping. Bake 35-40
minutes in 350 degree oven. Serve warm or cool with
Honey Lemon Yogurt Sauce.
Sauce:
In small bowl stir together:
1 1/4 cups vanilla yogurt
3 tbsp liquid honey
3/4 tsp. grated lemon rind.
Refrigerate until serving time.