This recipe was given to my wife from her aunt Callie who used to make the best pies I ever tasted.
2 cups flour
1 cup shortening
1/2 teaspoon salt
1/2 cup milk
1-1/2 teaspoon of vinegar
Mix flour, shortening, and salt in large bowl until it is the texture of corn meal. Then add milk and very importantly add vinegar, mix thoroughly.
Leftover dough will keep for weeks refrigerated in a closed container.