Practically No-Fat Chocolate Souffle Cake

Yield:	8 Servings
Categories:	Cakes, Low-Fat, Desserts

		Nonstick vegetable oil spray
14	tb	Sugar
2/3	c	Walnuts; toasted
1/2	c	Unsweetened cocoa powder
3	tb	Vegetable oil
8	lg	Egg whites
1	pn	Salt
		Powdered sugar