1 regular pie crust
1 (4 1/2 oz.) pkg. instant chocolate pudding
1 (12 oz) can evaporated milk, chilled
2-4 tbsp. creme de menthe or 1/2 tsp. peppermint extract
1 (8 oz.) Cool Whip

In large bowl beat chilled Pet milk and pudding mix for 1 minute. Add extract. Mix well. Fold in 3/4 of whipped topping. Pour into shell. Refrigerate 4 hours. Garnish with rest of topping before serving.