For the base:
Butter, for greasing
2 tablespoons sugar
1/8 teaspoon ground cinnamon
9 graham crackers
1/2 stick unsalted butter, melted
For the filling:
16 ounces cream cheese, room temperature
2 eggs
2 lemons, zested and juiced
About 1/2 cup sugar, eyeball it
1 1/2 cups fresh blueberries
Powdered sugar, for dusting
Add cream cheese, eggs, lemon zest, lemon juice and sugar to the food processor and mix until well combined. It should have a smooth consistency. Pour onto the cooled base and then cover with blueberries. They will sink slightly but should still be half exposed -- as the cake bakes they will sink a little more and break down.
Bake in the oven for 35 minutes or until the center only slightly jiggles. Remove from the oven and cool completely before refrigerating for at least 3 hours. Once set, remove from pan using the parchment lining and slice into 10 rectangular bars. Dust with powdered sugar.