1 stick butter (8 equal pads)
3/4 c. sugar
1 oz. chocolate square melted and cooled
1 tsp. vanilla
2 lg. eggs
1 (8 inch) baked pie shell
Cool Whip

Mix butter and sugar, beat in chocolate and vanilla. Add 1 egg at a time 5 minutes each on medium. Turn into baked pie shell. Chill overnight. May be garnished with Cool Whip or whipped cream, and chocolate curls.