Make the Crust:

Preheat oven to 350°F (175°C). Line a 9x13-inch baking dish with parchment paper or lightly grease it.

In a mixing bowl, cream the softened butter and sugar until light and smooth.

Add flour and salt, mixing until it becomes a crumbly dough.

Press the dough evenly into the bottom of the prepared pan.

Bake for 18–20 minutes, or until the edges are lightly golden. Remove from oven and set aside.

Make the Lemon Filling:

In a clean bowl, whisk together the eggs and sugar until smooth.

Add the flour, lemon juice, and zest. Mix until fully combined.

Pour the lemon filling over the warm crust.

Bake Again:

Return the pan to the oven and bake for another 20–25 minutes, or until the center is set and doesn’t jiggle.

Cool & Serve:

Let the bars cool completely at room temperature, then refrigerate for at least 1 hour.

Dust with powdered sugar before slicing into squares.