Chocolate Pecan Pie

9" pie shell, unbaked
1½ cup sugar
3 tablespoons cocoa
¼ cup margarine, melted
¾ cups chopped Pecans
2 eggs, slightly beaten
1/8 tsp salt
1 teaspoon vanilla
1 (5.33 oz) can evaporated milk

Mix sugar, cocoa and margarine. Stir well. Add eggs and beat with electric mixer for 2 1/2 minutes. Add salt, milk and vanilla. Stir in Pecans. Pour into pie shell. Bake in pre-heated oven, 350°, for 35 to 45 minutes.