Never Fail Pie Dough

Never Fail Pie Dough:

5 cups flour, divided
1 cup Butter/Margarine*

1 cup Lard/Shortening

3 tbsp Brown Sugar

2 tsp Salt
1 tsp Baking Powder

1 egg

2 tbsp Vinegar

3/4 cup Water

Measure 4 cups of flour and the remaining dry ingredients into a large bowl.
Cut in Butter and Lard. * You may choose to use all Lard as well. I prefer the taste of Butter in it as well.
Break egg into a measuring cup; beat with a fork. Stir in vinegar and water. Pour the liquid a little at a time into the flour mixture; tossing and mixing until all the liquid is absorbed. Now gradually add the remaining cup  of flour into the dough. Cover and chill in the refrigerator until ready to use.
This should make 3-4 double crusted pies.
Any leftover dough can be wrapped and frozen.