In a mixing bowl, combine graham cracker crumbs, melted butter, and 2 tablespoons of sugar. Mix until well combined. Press this mixture firmly into the bottom of a 9-inch springform pan to form the crust.
In a large bowl, beat the softened cream cheese with 1 cup of sugar and vanilla extract until smooth and creamy.
Add the eggs one at a time to the cream cheese mixture, mixing well after each addition.
Stir in the sour cream, lemon zest, and cornstarch until fully incorporated.
Gently fold in the fresh blueberries, being careful not to crush them.
Pour the cheesecake batter over the prepared crust and smooth the top.
Bake for 55-60 minutes, or until the center is set but slightly jiggles when shaken.
Turn off the oven and crack the door, letting the cheesecake cool inside for an hour to prevent cracking.
Remove from the oven and let it cool to room temperature before refrigerating for at least 4 hours, or overnight.
Once fully set, carefully remove the cheesecake from the springform pan.
Notes
Serve slices of the cheesecake on a decorative plate, garnished with fresh blueberries and a sprig of mint for an added pop of color.