Easy 7 Ingredient Lemon Bars

Preheat oven to 325F and line a 9×13 baking dish with parchment paper.*
Combine softened butter and powdered sugar in a bowl. Cream together until light and airy. Stir in the flour and salt until a crumbly dough forms. Evenly press the dough into the baking pan, forming a smooth compressed surface.
Bake in the oven for 20-23 minutes or until the edges are barely starting to brown.
In the meantime, whisk the 2 cups white sugar and 6 tbsp flour together in a bowl. Whisk in the eggs, lemon juice, and zest until the filling is completely combined.
Pour the filling on top of the pre-baked crust. Bake for another 25-30 minutes, or until the top no longer jiggles when tapped. Remove from the oven and let cool. Dust the top with powdered sugar