Step 1
Whisk flour sugar and salt together in a large mixing bowl for the crust until well combined. Add butter and shortening and mix until pea-sized crumbs form. Drizzle in water 1 tablespoon at a time and gently mix until dough starts to come together. Turn dough onto a lightly floured surface and pack into a ball. Cut dough in half and flatten into 2 discs. Cover each tightly with plastic wrap and refrigerate for at least 1 hour.
Step 2
Preheat the oven to 400 degrees F (200 degrees C).
Step 3
Roll out 1 piece of dough to fit a pie pan reserving the second piece for another use. Prick the bottom using a fork to prevent bubbles. Line dough with parchment paper or aluminum foil making sure to cover bottom and sides. Fill crust with pie weights dried beans or dry rice to weigh it down.
Step 4
Bake crust in the preheated oven until golden brown and cooked through 15 to 20 minutes.
Step 5
Remove crust from the oven leaving oven on. Remove pie weights and liner and return crust to the oven. Bake 15 to 20 minutes more.
Step 6
Meanwhile combine strawberries sugar and lemon juice in a saucepan over medium heat. Cook until strawberries are rendered down 10 to 20 minutes. Remove from heat.
Step 7
Whisk water sugar cornstarch and salt together in a saucepan until dissolved. Reserve 4 tablespoons of cornstarch slurry in a bowl. Heat the saucepan over high heat until mixture turns clear and thickens about 5 minutes. Add egg yolks lemon juice butter and lemon zest and whisk until butter is melted about 3 minutes more. Add reserved slurry 1 tablespoon at a time until filling mixture is thick again.
Step 8
Pour hot filling into baked pie crust. Cover filling with strawberry compote.
Step 9
Place egg whites in a large mixing bowl and beat using an electric mixer on high speed until bubbles start to appear. Add cream of tartar and continue to mix on high speed until soft peaks form. Reduce mixer speed to medium and add sugar slowly until fully integrated. Return mixer to high speed and mix meringue until stiff peaks form.
Step 9
Cover pie with meringue fully to seal in all filling.