Chocolate on Chocolate Pie

Yield:	8 Servings
Categories:	Pies, Chocolate, Desserts

1	c	Sygar
8	tb	Unsalted butter or margarine
1/4	c	Cornstarch
2		Lg. Eggs
1	ts	Vanilla extract
1	pk	Semi-sweet chocolate chips (8 oz.)
1	c	Chopped pecans
1		Unbacked 9" chocolate pie shell