Place a greased 9-in. springform pan on a double thickness of heavy-duty foil (about 18 in. square). Securely wrap foil around pan.

In a small bowl, combine the cracker crumbs, sugar and butter. Press onto the bottom of pan. Place on a baking sheet . Bake at 325° for 10 minutes. Cool on a wire rack.

In a large bowl, beat the cream cheese, sugar and flour until smooth. Add eggs; beat on low speed just until combined. Gradually stir in the eggnog, extract and nutmeg. Pour filling over crust.

Place springform pan in a larger baking pan; add 1 in. of hot water to larger pan.