Cookies 'n' Cream Cheesecake

1 cup chocolate sandwich cookie crumbs
1 tablespoon margarine, melted
3 8 ounce packages cream cheese, softened
1 cup sugar
2 tablespoons all purpose flour
1 teaspoon vanilla
3 eggs
1 cup coarsely chopped chocolate sandwich cookies

Preheat oven to 325F.

Mix together crumbs and margarine in small bowl. Press onto bottom of 9 inch springform pan. Bake 10 minutes.

Beat cream cheese, sugar, flour and vanilla in large mixing bowl at medium speed with an electric mixer until well blended. Add eggs, one at a time, mixing well after each addition. Fold in chopped cookies. Pour over crust.

Bake for 1 hour and 5 minutes. Loosen cake from rim of pan. Cool before removing rim of pan. Chill.

Garnish with thawed Cool Whip Whipped Topping, chocolate sandwich cookies, cut in half and mint leaves, if desired.