# What You'll Need:
→ Pie Crust
01 - 1 1/4 cups all-purpose flour
02 - 1/2 teaspoon salt
03 - 1 tablespoon granulated sugar
04 - 1/2 cup cold unsalted butter, cubed
05 - 3 to 4 tablespoons ice water
→ Lemon Filling
06 - 1 cup granulated sugar
07 - 1/4 cup cornstarch
08 - 1/4 teaspoon salt
09 - 1 1/2 cups water
10 - 4 large egg yolks
11 - 2 teaspoons finely grated lemon zest
12 - 1/2 cup freshly squeezed lemon juice
13 - 2 tablespoons unsalted butter
→ Meringue
14 - 4 large egg whites, at room temperature
15 - 1/2 cup granulated sugar
16 - 1/4 teaspoon cream of tartar
17 - 1/2 teaspoon pure vanilla extract
# How to Make It:
01 - Whisk together flour, salt, and sugar in a large bowl. Cut in cold butter until mixture resembles coarse crumbs. Add ice water one tablespoon at a time, mixing gently until dough just comes together. Shape into a disk, wrap in plastic, and chill for at least 1 hour.
02 - Roll dough on a lightly floured surface to fit a 9-inch pie dish. Press into dish and trim edges. Prick bottom with a fork. Line with parchment paper and fill with pie weights or dried beans. Bake at 400°F for 15 minutes, remove weights, and bake 8 to 10 minutes more until golden. Cool completely.
03 - In a saucepan, whisk together sugar, cornstarch, and salt. Gradually add water, whisking until smooth. Cook over medium heat, stirring constantly, until mixture thickens and begins to bubble, about 5 to 7 minutes. In a separate bowl, whisk egg yolks. Slowly pour in a little hot mixture to temper the yolks, then whisk yolk mixture back into saucepan. Cook 2 more minutes, stirring. Remove from heat and stir in lemon zest, lemon juice, and butter until smooth.
04 - Pour lemon filling into cooled pie crust. Set aside to cool to room temperature.
05 - Using a clean bowl, beat egg whites and cream of tartar on high speed until soft peaks form. Gradually add sugar, beating until stiff, glossy peaks form. Beat in vanilla extract.
06 - Spread meringue over warm filling, sealing edges to the crust to prevent shrinking. Bake at 350°F for 15 to 18 minutes, or until meringue is golden brown.
07 - Cool pie to room temperature, then chill at least 2 hours before slicing for clean cuts.