Ingredients:
- 1 ½ cups (192g) all-purpose flour, plus extra for dusting
- ½ teaspoon (2.5ml) salt
- ½ cup (113g) unsalted butter, very cold, cut into cubes
- ¼ cup (60ml) vegetable shortening, very cold
- 5-7 tablespoons (75-105ml) ice water
- 1 ½ cups (300g) granulated sugar
- ¼ cup (30g) cornstarch
- ¼ teaspoon (1.2ml) salt
- 1 ½ cups (355ml) water
- 6 large egg yolks
- ¼ cup (60ml) fresh lemon juice, from about 2-3 lemons
- 2 tablespoons (28g) unsalted butter
- 1 tablespoon (15ml) lemon zest
- 6 large egg whites
- ¼ teaspoon (1.2ml) cream of tartar
- ½ cup (100g) granulated sugar
- 1 teaspoon (5ml) vanilla extract
Instructions:
- Make the Pastry: Combine flour and salt. Cut in butter and shortening until mixture resembles coarse crumbs. Gradually add ice water until dough comes together. Flatten into a disc, wrap, and chill for at least 1 hour.
- Roll and Blind Bake the Crust: Roll out dough and transfer to pie plate. Crimp edges. Blind bake crust at 375°F (190°C) until lightly golden; cool completely. (Use pie weights or dried beans during baking to prevent puffing.)
- Prepare the Lemon Filling: Whisk together sugar, cornstarch, and salt in a saucepan. Gradually whisk in water until smooth. Cook over medium heat, stirring constantly, until thickened and bubbly.
- Temper the Egg Yolks: Whisk a small amount of hot filling into the egg yolks to temper them, then whisk the tempered yolks into the saucepan.
- Finish the Filling: Cook, stirring constantly, for 1 minute. Remove from heat and stir in lemon juice, butter, and lemon zest.
- Pour and Cool: Pour filling into the baked crust and let cool completely.
- Make the Meringue: In a clean, dry bowl, beat egg whites with cream of tartar until soft peaks form. Gradually add sugar, beating until stiff, glossy peaks form. Stir in vanilla extract.
- Top with Meringue: Spread meringue over the cooled filling, ensuring it touches the crust edge to seal.
- Bake or Torch: Bake at 325°F (160°C) until meringue is lightly browned, or use a kitchen torch to lightly brown the meringue.
- Cool and Chill: Let cool completely, then chill for at least 2 hours before serving.