1/2 c. butter
3/4 c. sugar
2 sqs. unsweetened chocolate
2 eggs
2 c. Cool Whip, thawed
1 (9 inch) pie shell

Cream butter with sugar. Stir in 2 squares unsweetened chocolate. Add 2 eggs, one at a time, beating 5 minutes after each, at high speed. Fold in 2 cups thawed Cool Whip. Pour into a cooled 9 inch pie shell. Chill about 2 hours or freeze.