Apple Crumb Pie for a Crowd

1 . Stage

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.

2 . Stage

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.

3 . Stage

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.

4 . Stage

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.

5 . Stage

Dump the sliced apples onto the crust and gently spread into an even layer. Drizzle the butter mixture over the apples.

6 . Stage

Pour apple crisp mix into a bowl. Cut 1/2 cup butter into the mix; scatter over the apples.

7 . Stage

Bake in preheated oven until golden brown, about 1 hour.