Ingredients

For the Crust

• 2 sticks butter, softened
• 1/2 cup granulated sugar
• 2 cups flour
• 1/8 teaspoon salt

For the filling:

• 6 extra-large eggs
• 3 cups granulated sugar
• 2 tablespoons grated lemon zest
• 1 cup lemon juice
• 1 cup flour
• Powdered Sugar, for dusting

Instructions

Preheat oven to 350ºF.
Line a 9×13 pan with foil or parchment, and lightly spray with non-stick cooking spray.
Cream together the butter and sugar. Mix in the flour and salt until dough forms.
Press the dough into the pan, building up 1/2 inch crust on all sides.
Bake the crust for 15-20 minutes or until lightly golden brown. Chill.
Whisk together all of the remaining ingredients (except the powdered sugar), and pour into the cooled crust. Bake for 30-35 minutes until filling is set. Let cool to room temperature or chill overnight.
Dust with powdered sugar before cutting and serving.
Source : allrecipes.com