These richly spiced shrimp are an elegant improvement on the traditional chilled boiled presentation—and are so flavorful that they need no sauce.
1/2 cup Dijon mustard
Combine all the ingredients in a large resealable plastic bag, shake once or twice to make sure the shrimp are coated, and marinate in the refrigerator for 4 to 6 hours.
The marinade can be prepared up to 2 days ahead and kept covered and refrigerated. The cooked shrimp can be made the morning of the party and kept covered and refrigerated. Bring them to room temperature before serving.