Preheat your oven to 325°F (160°C). Line an 8x8-inch baking dish with parchment paper, leaving a bit of overhang for easy removal later.
In a medium bowl, combine the graham cracker crumbs, melted butter, and 1 tablespoon of sugar. Mix until crumbly and evenly coated. Press the mixture firmly into the bottom of the prepared baking dish to form a crust. Bake for 10 minutes, then let it cool slightly.
In a large mixing bowl, beat the softened cream cheese until smooth and creamy. Gradually add in the granulated sugar, mixing until well combined.
Add the eggs, one at a time, mixing well after each addition. Then, stir in the vanilla extract, lemon zest, and lemon juice until incorporated.
Gently fold in the fresh blueberries until they are evenly distributed throughout the cheesecake mixture.
Pour the cheesecake batter over the cooled crust, spreading it evenly with a spatula.
Bake in the preheated oven for 30-35 minutes, or until the edges are set, and the center has a slight jiggle.
Remove from the oven and allow to cool completely at room temperature. Once cooled, refrigerate for at least 4 hours, or overnight for the best results.
Once set, lift the cheesecake out of the baking dish using the parchment overhang. Cut into bars, and dust with powdered sugar if desired. Top with extra blueberries for a decorative touch.