01 -
Set your oven to 350°F and prepare the pan with parchment paper.
02 -
Stir together butter, vanilla, flour, powdered sugar, and salt. Press the mixture into the bottom of your pan.
03 -
Bake for 18-20 minutes until the edges are lightly browned. Poke small holes with a fork.
04 -
Combine zest with sugar, then whisk in flour, eggs, and lemon juice. Mix until smooth.
05 -
Spread the filling evenly over the warm crust. Bake again for about 20-25 minutes until set.
06 -
Let it cool for an hour on the counter, then chill for two hours in the fridge.