Preheat your oven to 325°F (160°C). Line an 8x8 inch baking dish with parchment paper, leaving some overhang for easy removal later.
In a medium bowl, combine the graham cracker crumbs, melted butter, and 2 tablespoons of granulated sugar. Mix until the crumbs are moistened and resemble wet sand. Press the mixture firmly into the bottom of the prepared baking dish to form an even crust.
Bake the crust in the preheated oven for about 10 minutes. Remove and let it cool slightly while you prepare the cheesecake filling.
In a large mixing bowl, beat the softened cream cheese with ¾ cup of granulated sugar using an electric mixer until smooth and creamy.
Add the eggs one at a time, mixing well after each addition. Then, incorporate the lemon zest, lemon juice, and vanilla extract until fully combined.
Gently fold in the fresh blueberries, being careful not to crush them.
Pour the cheesecake filling over the cooled crust, spreading it evenly. Bake in the oven for 25-30 minutes, or until the center is slightly set and only jiggles slightly when shaken.
Remove from the oven and let it cool to room temperature. Then refrigerate for at least 4 hours or overnight to set completely.
Once chilled, use the parchment overhang to lift the cheesecake out of the baking dish. Cut into bars and dust with powdered sugar if desired.
Notes
Arrange the bars on a serving platter and garnish with additional fresh blueberries and lemon slices for a vibrant presentation.