Creating the perfect Blueberry Lemon Bars can be simple if you follow these easy steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C) and grease an 8-inch square baking dish or line it with parchment paper for easy removal.
2. Prepare the Crust: In a medium bowl, combine 1 cup of flour, ½ cup of granulated sugar, and ½ teaspoon of salt. Add the melted butter and mix until combined. Press this mixture evenly into the bottom of the prepared baking dish.
3. Bake the Crust: Place the dish in the preheated oven and bake for 15-20 minutes, or until golden brown. Remove from the oven and allow to cool slightly.
4. Make the Filling: In a separate bowl, whisk together the eggs and 1 cup of granulated sugar until smooth. Stir in 2 tablespoons of flour, fresh lemon juice, and lemon zest until combined.
5. Add Blueberries: Gently fold in the fresh blueberries, being careful not to crush them.
6. Combine: Pour the lemon filling over the baked crust, spreading it evenly.
7. Bake Again: Return to the oven and bake for an additional 30-35 minutes, or until the filling is set and lightly golden around the edges.
8. Cool Completely: Remove from the oven and allow the bars to cool to room temperature. Once cool, refrigerate for at least 2 hours to set completely.
9. Cut and Serve: Dust the cooled bars with powdered sugar if desired. Cut them into squares or rectangles for serving.

These steps will guide you to create the most delicious Blueberry Lemon Bars with a lovely balance of flavors!