Roast veal kidney with gingerbread crumb, caramelised shallots and creamy polenta

Preparation time less than 30 mins Cooking time 1 to 2 hours Serves Serves 2 By Michel Roux Jr. From Saturday Kitchen Ingredients For the polenta 150ml/5fl oz milk 150g/5½oz fine polenta 50g/1¾oz unsalted butter, …