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:

  1. 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.
  2. 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.)
  3. 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.
  4. 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.
  5. Finish the Filling: Cook, stirring constantly, for 1 minute. Remove from heat and stir in lemon juice, butter, and lemon zest.
  6. Pour and Cool: Pour filling into the baked crust and let cool completely.
  7. 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.
  8. Top with Meringue: Spread meringue over the cooled filling, ensuring it touches the crust edge to seal.
  9. Bake or Torch: Bake at 325°F (160°C) until meringue is lightly browned, or use a kitchen torch to lightly brown the meringue.
  10. Cool and Chill: Let cool completely, then chill for at least 2 hours before serving.