In medium bowl, mix first 3 Crust ingredients together with whisk. Add cold butter, and toss to coat. Using pastry blender or your fingertips, cut in butter, working until mixture looks like a coarse meal. Add 4 tablespoons of the ice water. Stir with wooden spoon. If still too dry, add more water, a tablespoon at a time, until dough comes together. Pat into a flat round. Wrap in plastic wrap, and refrigerate 30 minutes. Meanwhile, heat oven to 350°F.