Follow these steps to bring these delightful bars to life. Remember, cooking is about joy, so enjoy every moment of the process!

1. Preheat your oven to 325°F (163°C) and line an 8×8-inch baking pan with parchment paper, leaving some overhang for easy removal.
2. In a bowl, combine the graham cracker crumbs, 1/4 cup of sugar, and melted butter. Stir until well combined, then press the mixture firmly into the bottom of the prepared pan to form the crust.
3. Bake the crust for 10 minutes, then set aside to cool while preparing the filling.
4. In a large mixing bowl, beat the cream cheese and 1/2 cup of sugar together until smooth and creamy, about 2-3 minutes.
5. Add the eggs, one at a time, beating well after each addition. Mix in the lemon zest, lemon juice, and vanilla extract until fully combined.
6. Pour the cheesecake mixture over the cooled crust, spreading it evenly with a spatula.
7. Scatter the blueberries evenly over the top of the cheesecake layer. Gently press them down with the back of a spoon.
8. Bake for 35-40 minutes, or until the edges are set but the center still has a slight wobble. Allow the bars to cool in the pan at room temperature, then refrigerate for at least 2 hours before slicing.