French Chocolate Pie
["1/2 c. butter", "3/4 c. sugar", "2 sq. Baker's unsweetened chocolate, melted and cooled", "2 eggs", "2 c. Cool Whip, thawed", "1 (9-inch) pie shell, baked"]
["Cream butter and sugar.", "Stir in chocolate.", "Add eggs, one at a time, beating at high speed for 5 minutes after each egg.", "Fold in Cool Whip.", "Pour into cooled pie shell and chill until firm (about 2 hours) or freeze."]
["butter", "sugar", "chocolate", "eggs", "pie shell"]