1 1/4 c  All-purpose flour
3 tb Sugar
1 pn Salt
1/4 ts Baking powder
6 tb Cold butter
1 lg Egg

COMBINE THE FLOUR, sugar, salt and baking powder in a mixing bowl. Cut the
butter into six or eight pieces and distribute over the dry ingredients.
Rub in the butter finely, using fingertips or pastry blender, until the
mixture resembles a fine powder. DO NOT WORK THE MIXTURE TO THE POINT WHERE
IT BEGINS TO STICK TOGETHER. Beat egg with a fork in a small bowl and stir
into the flour-butter mixture: It will remain dry and crumbly. Turn the
dough out into a buttered 10- to 11-inch removable-bottom tart pan or a
9-inch Pyrex pie pan. Distribute the crumbly mixture evenly around the
bottom and side of the pan, pressing it into place with floured fingertips.
As you press the dough into place, it will adhere together and line the
pan. Avoid pressing the dough too hard or it will become thin in places.
After pressing the dough into the pan, inspect the surface for any
excessively thick or thin spots and press them even before proceeding.
Slide dough into a plastic bag and chill several hours or overnight, or
while preparing the filling. Makes one 10- or 11-inch tart shell or 9-inch
pie shell.