1. Combine sugar, flour (1/2 cup + 2 TBS) and salt in a saucepan.
2. Gradually stir in milk.
3. Cook over medium heat approximately 15 minutes or until thickened, stirring constantly.
4. Gradually stir in 1 cup hot mixture into the beaten eggs.
5. Add egg mixture to remaining hot mixture, stirring constantly.
6. Cook 1 minute; remove from heat.
7. Refrigerate 1 hour.
8. Combine whipping cream, half and half and vanilla in large bowl; add chilled mixture, stirring with wire whisk to combine.
9. Add crumbled cookies before freezing.
10. Freeze as directed using your ice cream maker manufacturer's directions.