Use this recipe to make our Individual Blueberry Pies a la Mode. The amount of water needed will vary depending on humidity.
Place flour, salt, and sugar in bowl of a food processor; process to combine. Add butter; process about 7 seconds, until mixture resembles coarse meal. With machine running, slowly add between 1/2 cup and 3/4 cup ice water through feed tube, until pastry just begins to hold together. Turn dough onto a piece of plastic wrap; pat into a square. Divide dough in half; wrap each half separately. Chill at least 1 hour before using.