Cock-a-Leekie Soup Recipe

The first thing you notice about this Scottish soup is the gentle sweetness tucked into an otherwise savory bowl. Chicken, leeks, barley, thyme, and a small handful of pitted prunes make a combination that sounds unusual until you taste it. The prunes do not make the broth taste fruity; they soften into the background, adding a rounded sweetness that balances the onion-like leeks and gives the soup its traditional character. With 1½ pounds of chicken, this recipe makes a generous eight servings, and the flavor becomes even more settled after a night in the refrigerator. I start by simmering the chicken with the chicken stock, water, and thyme until it is tender enough to pull apart easily. The chicken should cook gently rather than boil hard, which keeps the meat moist and gives you a clearer, more pleasant broth. Once the chicken is cool enough to handle, I shred it into bite-sized pieces and return it to the pot. The cleaned, sliced leeks go in with the barley and prunes, where they slowly soften while the barley releases starch into the liquid. That starch gives Cock-a-Leekie its characteristic body—not thick like a purée, but pleasantly substantial, with tender grains and silky ribbons of leek. The main practical point is to keep an eye on the barley. It continues absorbing broth as it cooks and as the soup rests, so check the pot during the 90-minute cooking time and add a little water or extra stock if it begins looking more like a stew than a soup. I also slice the leeks thoroughly and rinse them in a bowl of water before draining; grit often hides between the layers, even when the outside looks clean. Season toward the end, after the chicken and stock have contributed their salt, and stir in the chopped parsley just before serving so it stays fresh and green. This is an especially good lunch on a chilly day, when a bowl needs to be satisfying without being heavy. Serve it with oatcakes, crusty bread, or a simple loaf of Scottish-style soda bread for dipping, plus a crisp green salad dressed with cider vinegar to cut through the rich broth. If you are making it ahead, cool it promptly and refrigerate it; the barley will swell overnight, so loosen each reheated portion with water or stock. A final sprinkle of parsley and a few turns of black pepper bring the revived soup back to life.