Step 1

Preheat the oven to 350 degrees Fahrenheit (175°C).

Step 2

Place a foil or parchment paper in a 9 x 13-inch pan. Spray the lined pan with a thin layer of non-stick cooking spray.

Step 3

Combine the butter and sugar until they’re thoroughly blended. Next, add the flour and salt to the mixture. Continue mixing until the dough forms.

Step 4

Flatten the dough firmly into the prepared pan to form the crust.

Step 5

Bake crust at 350 degrees Fahrenheit for 15-20 minutes or until the edges are lightly browned. Once the crust is out of the oven, set it aside and let it cool.

Step 6

Mix the eggs, granulated sugar, lemon zest, lemon juice, and flour in a large bowl. Whisk until smooth and perfectly blended (strain if it looks a bit lumpy).

Step 7

Pour the mixture into the warm crust. Bake the bars for 30 to 35 minutes or until the filling is set (it will look jiggly but not watery).

Step 8

Let the bars cool for 2 hours at room temperature. Then, refrigerate them for at least an hour before serving.

Step 9

Pull the parchment paper to loosen the bars from the pan. Dust the whole thing with powdered sugar before slicing it into squares. Serve and enjoy!