Although leeks nearly disappeared from the tables of upper classes throughout northern Europe in the 16th and 17th centuries, they kept going strong in hearty peasant fare. One of the lesser-known, but more delicious of the comforting peasant dishes is Leek Champ. (“Champ” is one of the best-loved ways of cooking potatoes in Ireland). Simply boil them, mash them with some boiled milk, and stir in a green vegetable such as scallions, chives, nettles, peas, or leeks. Then serve the creamy, green-flecked mixture with a big knob of yellow butter melting in the center. It’s a sure way to get any picky eater to eat vegetables!)