12 tbsp unsalted butter, melted (170g)
3 cups all-purpose flour, divided (360g) – 2 1/2 cups for the crust, 1/2 cup for the filling
2/3 cups powdered sugar (66g), plus extra for dusting
1/2 tsp salt
3 tbsp lemon zest (zest of 3 lemons)
3 cups granulated sugar (600g)
1 cup freshly squeezed lemon juice (240mL)
8 large eggs, room temperature