By Melissa Clark Ali Slagle’s roasted broccoli with vinegar-mustard glaze.Credit...Yossy Arefi for The New York Times ...

Cooked warm-water prawns (often sold as crevettes) are excellent served in a salad as a first course. Chinese cookery has some great recipes for them – sweet-and-sour prawns, for instance.

Set aside. Heat the butter in a large skillet over medium-high heat until hot. Add the prawns and cook for 3 minutes until the shrimp are pink on both sides. Transfer the prawns to a plate and set ...