Ingredients:
- 1 ¼ cups (150g) all-purpose flour
- ½ tsp (3g) salt
- ½ cup (113g) cold unsalted butter, cubed
- 3–4 tbsp (45–60ml) ice water
- 1 cup (200g) granulated sugar
- 3 tbsp (25g) cornstarch
- ¼ tsp (1.5g) salt
- 1 ½ cups (355ml) water
- ½ cup (120ml) fresh lemon juice
- 1 tbsp (6g) lemon zest
- 3 large egg yolks, beaten
- 2 tbsp (28g) unsalted butter
- 3 large egg whites, room temperature
- ¼ tsp (1g) cream of tartar
- ½ cup (100g) granulated sugar
Instructions:
- Combine flour and salt; cut in cold butter until pea-sized crumbs form. Stir in ice water until the dough holds.
- Roll out dough, fit into a 9-inch pie dish, and prick the bottom with a fork. Bake at 375°F (190°C) for 12–15 minutes until edges are pale gold. Let cool slightly.
- In a saucepan, whisk sugar, cornstarch, and salt. Stir in water, lemon juice, and zest.
- Bring filling to a boil over medium-high heat, stirring constantly. Slowly whisk in the beaten egg yolks.
- Continue boiling for 1 minute until the mixture is thick and glossy. Remove from heat and stir in butter until melted.
- Beat egg whites and cream of tartar on medium speed until soft peaks form.
- Gradually add sugar, one tablespoon at a time, increasing speed to high. Beat until stiff, glossy peaks form.
- Pour the hot lemon filling into the pre-baked crust. Immediately mound the meringue on top, spreading it to the very edges of the crust.
- Create decorative swirls and peaks. Bake at 325°F (160°C) for 20 minutes until the peaks are mahogany.
- Chill for 3 hours before slicing to allow the filling to set completely.