Sautéed lambs’ kidneys with wet polenta and baby turnips

By Matt Tebbutt From Saturday Kitchen Ingredients For the sautéed lambs’ kidneys 25g/1oz butter 1 garlic clove, smashed 4 lambs’ kidneys 3 sage leaves 1 tsp balsamic vinegar 50ml/2fl oz Madeira salt and freshly ground black pepper For the wet polenta 1 litre/1¾ pints chicken …