1/2 c. butter
3/4 c. sugar
2 sq. unsweetened chocolate, melted
2 eggs
4 oz. frozen whipped topping
1 baked 9" pie shell

Cream butter. Gradually add sugar, beating until light and fluffy. Add chocolate. Add eggs, one at a time, beating on high speed 5 minutes after each addition. Fold in whipped topping. Spoon in shell. Chill until firm.