Everything about this dish falls into the splurge category, especially if you live here in the Northeast, where shrimp come from elsewhere and Meyer lemons do not grow on trees. However, the holiday weekend approaches, and who deserves this over-the-top indulgent appetizer more than friends and family coming to the first official celebration of the summer season? There's nothing complicated here. Steam, poach, broil or grill jumbo shrimp. Mix up a fresh sauce with Greek yogurt and fresh dill weed and, if you can find one, a Meyer lemon, which is a cross between a lemon and a tangerine. Simple, elegant, and sure to be the first dish to disappear at any party.