1 1/2 cups graham cracker or shortbread crumbs
1/4 cup brown sugar
1/4 cup butter (melted)
2 pounds cream cheese (four 8-ounce packages, softened)
1 1/2 cups Sugar
1 1/2 cups persimmon purée
1/4 cup unbleached all-purpose flour
1 tablespoon cinnamon
1 lemon (grated zest)
1/2 teaspoon salt
1 tablespoon pure vanilla extract
4 large eggs (at room temperature)
  Whipped cream (as garnish)