Artichoke and Feta Quiche

Name: Artichoke and Feta Quiche
Ingredients: 1 3/4 cups all-purpose flour, plus more for dusting (see Cook's Note); 1 tablespoon sugar; 1/2 teaspoon fine salt; 12 tablespoons (1 1/2 sticks) chilled unsalted butter, diced and kept very cold; 4 teaspoons cider or white vinegar; 1/3 cup ice water, plus more as needed; 1/2 cup thinly sliced shallots; 1 cup chopped thawed frozen artichoke hearts; 1 cup crumbled feta; 1 1/4 cups half-and-half; 2 tablespoons chopped fresh flat-leaf parsley; 3 large eggs; Kosher salt and freshly ground black pepper