Peppers from the valley of La Vera, in Extremadura, are used to produce a deliciously smoky paprika. There are three kinds of pimentón: sweet, bittersweet (called agridulce), and hot. We prefer agridulce in this recipe.
Cooks' notes:
· Meat rub keeps in an airtight container 1 week. · Vinaigrette (without parsley) can be made 3 hours ahead and kept at room temperature, or 1 day ahead, chilled and covered. Bring to room temperature and whisk in parsley just before serving.