Pastry:
2 3/4 flour
1 teaspoon salt
1 Tablespoon white sugar
1 cup shortening
1 Tablespoon butter
1 1/2 teaspoon lemon juice
1 egg yolk
1/2 cup very cold water
Filling
1/4 cup unsalted butter
1/2 cup maple syrup
1 1/2 Tablespoon cornstarch
1 Tablespoon cold water
3 pounds large Cortland apples (or Granny Smith), 6 or 7, peeled cored &
sliced
2 Tablespoon lemon juice
3 Tablespoon flour
1 teaspoon cinnamon
1/4 teaspoon nutmeg
1/4 teaspoon salt
2 Tbsp sugar
Pastry Wash:
1 egg yolk
1 Tablespoon cream or milk
1 Tablespoon coarse sugar
Pastry:
Combine flour, salt & sugar in large bowl. Stir. Using pastry blender or electric mixer with paddle attachment, blend in the shortening and butter into the flour mixture. Blend until resembles coarse crumbs.
Mix the lemon juice and egg yolk in a measuring cup. Add cold water & mix well. Pour over flour mixture. Blend until dough holds together well. Gather the dough into a ball and flatten into disc. Wrap in plastic wrap & refrigerate for at least 1 hour and up to a day.
Roll dough into a 20" round disc, approx. 1/8" thick
Roll the dough onto the rolling pin and transfer to a pie plate. Unroll the dough leaving a large overhang
Filling
Place butter & maple syrup together in medium saucepan over medium heat. Place water in small bowl, add cornstarch and add to mixture. Stirring constantly, slowly bring mixture to a boil, reduce heat and simmer for 4 to 5 minutes or until thickens. Cool to lukewarm.
Meanwhile, place the apples in a large bowl and pour in lemon juice. Mix the flour, cinnamon, nutmeg & salt.
Sprinkle over apples and toss until the apples are coated.
Pour the cooled syrup mixture over the apples & toss well to coat the apples.
Preheat oven to 375 degrees.
Spoon the apple mixture over the dough
Fold the overhanging dough over the apples. Mix the egg yolk & cream in a small bowl. Brush the pastry wash mixture over the dough and sprinkle with the sugar. Bake until the crust is golden brown and the filling is set, approximately 1 hour 15 minutes