2In a heavy saucepan combine melted margarine, corn syrup, white sugar and cocoa. Cook over low heat, stirring constantly, until sugar dissolves. Add vanilla, salt and eggs, stirring well. Stir in 1/2 cup pecans. Mix well.
3Pour filling into unbaked pastry shell and top with remaining 1/2 cup pecans. Bake at 325 degrees F(165 degrees C) for 55 minutes. Let cool and serve.