Preheat oven to 350°F and grease springform pan.
Crush gingersnaps and mix with butter, sugar, cinnamon.
Press mixture into pan and bake 10 minutes.
Beat cream cheese until fluffy.
Add sugar, then eggs one at a time.
Blend in molasses, vanilla, and spices.
Fold in sour cream.
Pour filling into crust.
Place in roasting pan with hot water bath.
Bake 55–60 min until center almost set.
Cool 1 hr in oven, then at room temp.
Chill 4 hrs or overnight.
Whip cream, sugar, vanilla to soft peaks.
Top cheesecake with whipped cream & cinnamon.