Combine the flour, salt and sugar in a large bowl.

Cut in the butter using a pastry blender or your fingers until the mixture resembles coarse meal.

Whisk the vinegar, egg, and 1/2 cup of ice water together and mix into the flour mixture with your hands until just combined.

Transfer to a clean work surface, and gently press to form a dough.

Divide dough into 4 equal parts.

Shape each into a ball, flatten slightly to form a disk, and wrap in plastic.

Chill for at least 1 hour.

Roll out disk on lightly floured surface to 1/8" thickness.

Transfer to to a 9in. pie plate, fill with fruit. Roll second disk top with top crust, crimp edge.

Bake at 375 degrees for 50 minute.