01 -
Set your oven to 350°F. Lay parchment paper inside a 9x13-inch dish.
02 -
Combine melted butter, sugar, salt, and vanilla. Mix in flour until it comes together. Press the mixture evenly into the lined dish.
03 -
Pop it in the oven for 20 minutes until the edges are lightly golden.
04 -
In a big bowl, whisk together the eggs, sugar, lemon juice, lemon zest, and flour. Pour the mixture over the hot crust.
05 -
Put it back in the oven for 25 minutes, turning halfway. Let it cool down, then refrigerate for at least 2 hours or overnight. Sprinkle powdered sugar before serving.