I think of celeriac as one of the most underrated winter vegetables with its delicate celery flavour and a light nuttiness. Its versatility makes it a valuable addition to a gratin, mashes, soups and of course raw in a remoulade.
I’d been toying with the idea of treating a vegetable in southern barbecue style for a while, and while this version is cooked in the oven, there is no reason why you couldn’t do it in a barbecue. Be aware that many barbecue sauces often contain fish, so if you are vegetarian look out for a sauce that is suitable for you. I like to use a tangy, sweet and lightly smoked sauce here.