Rustic Plum Pie

Cut butter into bits and in a bowl with a pastry blender or in a food processor blend or pulse together with, flour, sugar, and salt until mixture resembles coarse meal. Add 2 tablespoons ice water and toss or pulse until incorporated. Add enough remaining ice water, 1 tablespoon at a time, tossing with a fork or pulsing to incorporate, to form a dough. Gather dough into a ball. On a work surface smear dough with heel of hand in 3 or 4 forward motions to make dough easier to work with. Form dough into a ball and flatten into a disk. Chill dough, wrapped in plastic wrap, 1 hour. Preheat oven to 375 °F.