- Crust:
- 2 1/2 cups all-purpose flour
- 1/4 teaspoon salt
- 1/2 cup butter
- 1/2 cup shortening
- 1 egg
- 1/4 cup cold water
- 1 tablespoon white vinegar
- Filling:
- 1/2 cup butter
- 1/4 cup all-purpose flour
- 1/2 cup water
- 1/2 cup brown sugar
- 16 apples – peeled, cored, and thinly sliced
- 1/2 cup butter
- 2 (8.5 ounce) boxes apple crisp mix (such as Concord Foods)
- Combine 2 1/2 cups flour and salt in a large bowl. Cut 1/2 cup butter and shortening into flour until the mixture resembles crumbs.
- Mix egg, water, and white vinegar together in a separate bowl; pour in the crumb mixture and blend with a fork to form a dough ball. Wrap dough in plastic wrap and refrigerate until ready to use.
- Melt 1/2 cup butter in a saucepan over medium heat. Blend 1/4 cup flour into the melted butter. Stir water and brown sugar into the butter mixture until smooth; remove from heat.
- Roll chilled dough into a large rectangle on a flat surface dusted with flour; press into the bottom of an aluminum foil roasting pan and up the sides about an inch or more.
- Dump the sliced apples onto the crust and gently spread into an even layer. Drizzle the butter mixture over the apples.
- Pour apple crisp mix into a bowl. Cut 1/2 cup butter into the mix; scatter over the apples.
- Bake in preheated oven until golden brown, about 1 hour.