For the Crust:
3/4 cup (180 mL) cold butter; cut into ½-inch (1.2 cm) pieces
2 cups (475 mL) all-purpose flour
1/4 cup (60 mL) granulated sugar
1/4 tsp (1.2 mL) salt
1/3 cup (80 mL) ice water

For the Filling:
2 cups (475 mL) water
1 cup (240 mL) granulated sugar
1/2 cup (120 mL) cornstarch
5 egg yolks, beaten
1/4 cup (60 mL) butter
3/4 cup (180 mL) fresh lemon juice
1 tbsp (15 mL) lemon zest
1 tsp (5 mL) vanilla extract

For the Meringue:
5 egg whites, room temperature
1/2 tsp (2.5 mL) cream of tartar
1/4 tsp (1.2 mL) salt
1/2 tsp (2.5 mL) vanilla extract
3/4 cup (180 mL) granulated sugar