Braised lamb shanks with roasted sweet potatoes and spiced crisps
By Michel Roux Jr. From Saturday Kitchen Ingredients For the lamb shanks 2 lamb shanks (about 350g/12oz each) 1 tbsp olive oil 2 onions, thinly sliced 1 garlic clove, crushed 2 pinches saffron 2 tsp cumin seeds 100g/3½oz hopped tomatoes or passata 250ml/9fl oz chicken stock salt …