Use this recipe for pie dough with the iron skillet apple pie in a 12-inch pan.
PIE DOUGH FOR A 12-INCH SKILLET
Keep butter and shortening in the refrigerator to ensure a flaky crust.
18 ounces all-purpose flour
1-1/2 teaspoons table salt
9 ounces unsalted butter, cold and cut into 1/2-inch cubes
3 ounces shortening, cold
3/4 cup ice water
Place flour and salt in a mixer bowl. Using flat beater, mix flour and salt on low speed 15 seconds. Place cubed butter and shortening in bowl. Mix on low speed 1 minute, or until mixture resembles cornmeal. Some butter lumps will remain.
With mixer on low speed, gradually add ice water. Mix just until water is absorbed. Do not over work the dough. Scoop dough onto counter. Gently press into a large ball and cut in to two pieces. Flatten each piece into a rounded disk. Place the disks in a zip-top bag. Refrigerate 30 minutes.
Remove dough from refrigerator. Lightly dust each piece with flour. Flatten gently. Using a floured rolling pin, roll lightly with quick strokes from center out to edge in all directions. Form a circle 13 to 14 inches in diameter and about 1/8 inch thick. Bottom crust will be slightly thicker. Shift or turn dough occasionally to prevent sticking. If edges split, pinch cracks together.
BOTTOM CRUST: Fold each piece of rolled dough in half. For iron skillet apple pie, proceed with instructions in the recipe. For other applications, such as chicken pot pie, carefully place in ungreased 12-inch skillet with fold at center. Unfold and fit carefully into skillet, being careful not to leave any air spaces between skillet and dough. Place contents over bottom crust, being careful not to overfill.
TOP CRUST: With top crust folded in half, make several small slits with a knife near center fold to allow steam to vent during baking. Brush outer rim of bottom crust with water. Lay top crust over filling with fold at center. Unfold and press edges of two crusts together lightly. Trim overhanging edges of dough by with a knife or spatula. Seal pie by pressing edges of crust firmly together or crimping with thumb and forefinger to make a fluted edge.
Brush top crust with 1 whisked egg. On fruit pies, sprinkle 2 tablespoons sugar evenly over crust. Do not use sugar on savory pies. Bake pie as directed in recipe. Place pan under skillet to catch syrup spills. Watch skillet pie in oven as it requires longer baking than a traditional 9-inch pie. If needed, shield crust with foil sheet in last 15 to 30 minutes to prevent excessive browning.