Liberally grease a large springform pan and set aside.
In a food processor, combine the graham cracker crumbs, walnut flour, butter, sugar, and cinnamon.
Pulse until the mixture resembles a fine sand. Press the crust firmly and evenly into prepared springform pan.
In a standing mixer fitted with a whisk attachment, whip cream cheese and sour cream until light and fluffy, about 2 minutes. Add in eggs and whip 1 minute more.
Add in sugar, vanilla bean seeds, lemon zest, and salt, mixing until combined.
Pour cheesecake mixture over prepared crust and place into preheated oven.
Bake for 1 hour, then allow the cheesecake to cool completely in the fridge (about 4 hours).
Once cooled, remove from springform pan and place on serving plate.