INGREDIENTS
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1 (4.4-pound) bone-in lamb shoulder
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Olive oil
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Sea salt and freshly ground black pepper
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1 large bunch fresh rosemary
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1 bulb garlic, unpeeled, broken into cloves
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1 1/2 pounds peeled potatoes, cut into large chunks
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3 large carrots, peeled and cut into small chunks
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1/2 a large rutabaga, peeled and cut into small chunks
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6 tablespoons butter (divided)
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1 pound lovely greens, such as white cabbage, savoy cabbage, Brussels sprouts tops or cavolo nero, leaves separated, stalks finely sliced
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1 tablespoon all-purpose flour
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2 cups good-quality hot chicken or vegetable stock
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2 heaped tablespoons capers, soaked, drained and chopped
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1 large bunch fresh mint, leaves picked
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2 tablespoons red wine vinegar