Another excellent Nigel Slater recipe from a recent edition of Observer Food Monthly. Regather box contents in February/March are absolutely made for this dish: grapefruit, orange, beetroot, cabbage, fennel, celeriac. Plus cashew nuts and a very zingy dressing. You can substitute other preferred root veg (e.g. carrot) and green cabbage for the red, or why not sprinkle on some lush …