Preheat oven to 325 degrees F. Mix 1-1/2 tsp cinnamon and crushed graham crackers  or cookies together. Add melted butter and mix until well blended.

Using fingers, pres crust mixture into bottom and 2/3 of the way up the sides of a 9-inch springform pan. Bake crust for about 6 minutes until set.

Mix the cream cheese and sugars together until smooth. Stir together the flour and spices and mix this into the cream cheese mixture. Beat the eggs into the cream cheese mixture one at a time. Beat in the pumpkin and vanilla.

Pour filling into the pre-baked crust and bake for about 1-1/2 hours or until a cake tester comes out clean.

Cool completely, then cover and refrigerate for at least two hours (or overnight) before serving. Cake can even be made two days in advance.

Recipe Courtesy of FabulousFoods.com.