Ingredients:
- 1 cup (225g) unsalted butter, softened
- 1/2 cup (60g) powdered sugar
- 2 cups (250g) all-purpose flour
- 1/4 tsp (1.5g) salt
- 2 cups (400g) granulated sugar
- 3 tbsp (24g) all-purpose flour
- 3 tbsp (12g) cornstarch
- 4 large eggs
- 1/2 cup (120ml) fresh lemon juice
- 1 tbsp (6g) lemon zest
Instructions:
- Preheat your oven to 350°F (175°C). Line your 9x13 pan with parchment paper, leaving an overhang on the sides for easy removal.
- Cream the softened butter and powdered sugar until smooth. Stir in the flour and salt until a soft dough forms.
- Press the dough evenly into the bottom of the pan. Use the bottom of a measuring cup to ensure the corners are packed tightly.
- Bake the crust for 20 minutes or until the edges are lightly golden and the center looks set.
- While the crust bakes, whisk together the granulated sugar, flour, and cornstarch in a medium bowl.
- Add the eggs one at a time, whisking vigorously until no lumps remain.
- Stir in the fresh lemon juice and zest until the mixture is smooth and aromatic.
- Pour the lemon filling directly over the hot crust.
- Bake for another 15–20 minutes. The filling should be set around the edges but still jiggle slightly in the center.
- Remove from the oven and allow to cool completely on a wire rack.
- Refrigerate for at least 2 hours before lifting the parchment paper out and slicing into 24 squares.