Preheat the oven to 350 degrees
Cream sugar and butter together. Add salt and flour until just combined.
Press into a 9 by 13 pan, adding a 1/2 inch crust lip on the sides
Bake in the oven for 15-20 minutes
Let cool for about 30 minutes.
Mix eggs, sugar, lemon juice, lemon zest, and flour.
Whisk until nice and creamy and everything is well incorporated.
Pour onto the cooled crust and bake in the oven for 25-30 minutes.
Once it comes out of the oven, make sure to let it cool completely. Dust with powdered sugar.
Cut into small 1-2 inch squares and serve!
You can eat this room temperature, out of the fridge, or (our favorite) frozen! They are the perfect summer treat.
If you freeze them, they will stay good for quite a while. Make sure to cut them prior to freezing. I like to arrange them in a plastic tupperware and put a piece of parchment paper in between the layers to prevent sticking.
Try not to eat them all!