Ingredients:
- 1 ½ cups (192g) all-purpose flour, plus more for dusting
- ½ teaspoon (3g) salt
- ½ cup (113g) unsalted butter, very cold, cut into cubes
- 4-6 tablespoons (60-90ml) ice water
- 1 ½ cups (300g) granulated sugar
- ¼ cup (25g) cornstarch
- ⅛ teaspoon (pinch) salt
- 1 ½ cups (355ml) water
- ⅓ cup (80ml) lemon juice, freshly squeezed (from about 3-4 lemons)
- 2 tablespoons (28g) unsalted butter
- 4 large egg yolks
- 1 teaspoon (5ml) lemon zest
- 4 large egg whites, room temperature
- ¼ teaspoon (1g) cream of tartar
- ½ cup (100g) granulated sugar
- ½ teaspoon (2.5ml) vanilla extract
Instructions:
- Combine flour and salt. Cut in cold butter until mixture resembles coarse crumbs. Gradually add ice water, mixing until dough just comes together.
- Flatten dough into a disc, wrap in plastic wrap, and chill for at least 15 minutes. Roll out dough on a lightly floured surface and transfer to pie plate. Crimp edges.
- Dock the bottom of the crust with a fork. Line the crust with parchment paper and fill with pie weights or dried beans. Bake in a preheated oven (375°F/190°C) for 15-20 minutes, then remove weights and bake for another 5-7 minutes until lightly golden. Let cool completely.
- In a saucepan, whisk together sugar, cornstarch, and salt. Gradually whisk in water. Cook over medium heat, stirring constantly, until mixture thickens and comes to a boil.
- Remove from heat. In a separate bowl, whisk together lemon juice and egg yolks. Slowly drizzle a small amount of the hot sugar mixture into the egg yolk mixture, whisking constantly to temper the yolks.
- Pour the tempered egg yolk mixture back into the saucepan.
- Return the saucepan to medium heat and cook, stirring constantly, for 1-2 minutes, until the filling thickens further. Remove from heat and stir in butter and lemon zest.
- Pour the lemon filling into the cooled pie crust. Cover with plastic wrap, pressing directly onto the surface of the filling to prevent a skin from forming. Refrigerate for at least 2 hours, or until completely cooled.
- In a clean, grease-free bowl, beat egg whites and cream of tartar with a stand mixer or hand mixer until soft peaks form.
- Gradually add sugar, 1 tablespoon at a time, beating continuously until stiff, glossy peaks form. Beat in vanilla extract.
- Spread meringue evenly over the cooled lemon filling, making sure to seal it to the edges of the crust. Swirl the meringue with a spoon or spatula to create decorative peaks.
- Bake in a preheated oven (350°F/175°C) for 12-15 minutes, or until the meringue is lightly golden brown. Alternatively, broil the meringue for 1-2 minutes, watching carefully to prevent burning.
- Let the pie cool completely before slicing and serving.