Gourmet Double Pie Crust

This recipe was posted on one of the message boards where i occasionally visit. I've used it several times.

In a medium bowl , stir together flour , sugar , salt and baking powder.

Using a pastry blender or fork , cut in 3 / 4 cup shortening until pieces are the size of small peas.

In a glass measure , combine one beaten egg , 1 teaspoons vinegar and enough water to make 1 / 3 cup liquid.

Add liquid to flour mixture.

If necessary , add more water , 1 tsp at a time , until dough clings together.

Divide in half and form each 1 / 2 into a ball.

Each ball makes 1 crust.

all-purpose flour, sugar, salt, baking powder, shortening, egg, vinegar