Country Cranberry Rhubarb Tart

Yield:	8 Servings
Categories:	Pastries, Desserts

1	cn	(16-oz.) whole cranberry sauce
1/3	c	Granulated sugar
1 1/2	tb	Cornstarch
3/4	lb	Rhubarb stalks, cut into 1/2- inch pieces
		Pastry dough for 9-inch single crust pie
		Confectioner's sugar