Follow these simple steps to make your Tangy Raspberry Lemon Bars:

1. Preheat Your Oven: Set your oven to 350°F (175°C) and prepare a 9×13 inch baking dish by greasing it lightly.
2. Make the Crust: In a mixing bowl, cream together the softened butter and granulated sugar until light and fluffy.
3. Add Dry Ingredients: Gradually add the flour, salt, and lemon zest to the butter mixture. Mix until just combined.
4. Press the Crust: Press the crust mixture evenly into the bottom of the prepared baking dish. Use your hands to flatten it smoothly.
5. Bake the Crust: Place the crust in the preheated oven and bake for about 15-20 minutes, until lightly golden.
6. Prepare the Filling: In another bowl, whisk together the eggs, granulated sugar, and freshly squeezed lemon juice until well combined.
7. Add Flour: Stir in the flour until the mixture is smooth and everything is evenly incorporated.
8. Fold in Raspberries: Gently fold in the fresh raspberries without breaking them up too much.
9. Combine and Pour: Once the crust is baked and cooled slightly, pour the lemon-raspberry filling over it.
10. Bake Again: Return to the oven and bake for an additional 25-30 minutes, until the filling is set and slightly bubbly around the edges.
11. Cool: Allow the bars to cool at room temperature for about 2 hours. Once cooled, refrigerate for at least another hour for easier cutting.
12. Cut and Dust: Before serving, dust the top with powdered sugar if desired. Cut into squares or rectangles to serve.

These straightforward steps will guide you in making these incredible Tangy Raspberry Lemon Bars with ease.