Place parchment paper in the bottom of 9X9 pan, extending up over sides and over top. Turn pan, and put in another sheet. This will help you get the cheesecake out perfectly.
For the Base:.
In a food processor, combine the graham crackers, sugar and cinnamon, process until you have very small crumbs. Add melted butter and pulse a couple of times to full incorporate the butter. Pour into the lined baking pan and gently pat down. Cook for 12 minutes. Set aside to cool.
For the Filling:.
To the food processsor bowl, add cream cheese, eggs, lemon zest, lemon juice and sugar. Process for a few seconds until well combined. It should be smooth and kind of glossy. Pour into the cooled base, smooth gently into the corners and then sprinkle with the blueberries (I have used frozen berries with excellent results). Don't stir! Bake for 35 minutes or until the center only slightly jiggles. Chill for 3 hours, then grasp the parchament handles and lift the entire cheesecake out. Cut into 10 squares. Dust with powdered sugar if desired.