1 single pie crust, baked
1/2 lb. butter, creamed with
1 1/2 c. sugar
2 oz. sq. unsweetened chocolate, melted
2 tsp. vanilla
4 eggs

After creaming butter and sugar, add chocolate and vanilla. Add 2 eggs; beat for 5 minutes. Add 2 more eggs and beat another 5 minutes until sugar totally dissolved. Pile into pie shell. Chill 6 hours. Top with whip cream.