1/2 c. butter
3 oz. bitter chocolate (unsweetened)
1 c. sugar
1/3 c. corn syrup
1/4 c. flour
1 tsp. vanilla
1/4 tsp. salt
3 eggs, partly beaten

Melt butter and chocolate over low heat. Stir in sugar, corn syrup, flour, vanilla and salt. Stir in eggs. Pour in graham cracker crust. Bake on 350 degrees for 30 to 35 minutes.