Classic Brussels stoemp: a hearty mash of floury Bintje potatoes, butter-braised leeks, sweet carrots, and Savoy cabbage, enriched with milk, butter, and nutmeg.
Melt half the butter in a pan and sauté the leeks, carrots, and cabbage for 8 minutes until tender and sweet.
Boil the peeled potatoes in salted water for 18 minutes until tender; drain well and steam-dry.
Add the braised vegetables, warm milk, and remaining butter to the potatoes. Crush together with a potato masher, leaving rustic chunks of vegetable throughout.
Season with freshly grated nutmeg, sea salt, and black pepper. Mound onto plates with a crater in the centre for rich pan gravy.