Crush enough sandwich cookies to cover 9"x12" Tupperware container. Spread with 8 ounces Cool Whip. Spread with Triple Treat Sherbet slightly softened. Cover:

4 tbsp. lemon juice (3 tbsp. if using real lemon)
3/4 c. sugar
6 tbsp. butter
2 eggs, beaten

Cook until thick. Place cover on container and freeze until ready to serve.