Colcannon is traditionally made from mashed potatoes and kale (or cabbage), with milk or cream, butter, salt and pepper. It can contain other ingredients such as scallions, leeks, onions, and chives. There are many regional variations of this dish and it's often eaten with boiled ham or Irish bacon. At one time it was a cheap, year-round staple food, though nowadays it is usually eaten in autumn/winter, when kale comes into season.
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