1. Combine water, sugar, cornstarch, lemon juice, and butter and cook until thickened. Cool. Add peaches and put in pre-cooked pie crust.

Pie Crust:

1. Dice the butter and return it to the refrigerator while you prepare the flour mixture.
2. Place the flour, salt, and sugar in the bowl of a food processor fitted with a steel blade and pulse a few times to mix.
3. Add the butter and shortening.
4. Pulse 8-12 times, until the butter is the size of peas. With the machine running, pour the ice water down the feed tube and pulse the machine until the dough begins to form a ball.
5. Dump out onto a floured board and roll into a ball. Wrap in plastic wrap and refrigerate for 30 minutes.
6. Cut the dough in half. Roll each piece on a well-floured board into a circle, rolling for the center to the edge, turning and flouring the dough to make sure it doesn’t stick to the board. Fold the dough in half, place in a pie pan, and unfold to fit the pan. Repeat with the top crust.