You can cook the Rumbledethumps earlier in the day and reheat in the oven - give them an extra 20 minutes or so from cold.


  • 600g/1lb 5oz large potatoes, peeled and chopped into large chunks
  • 400g/14oz swede (known as turnip in Scotland), peeled and chopped into large chunks
  • 75g/2¾oz unsalted butter
  • 250g/9oz savoy cabbage or kale, finely sliced
  • salt and freshly ground black pepper
  • 25g/1oz cheddar cheese, grated


  1. Preheat the oven to 180C/350F/Gas 4.

  2. Cook the potatoes and swede in a saucepan of salted boiling water until tender. Drain well and return to the pan.

  3. Heat 50g/2oz butter in a pan and gently cook the cabbage for a few minutes, until the cabbage is tender but retains its colour.

  4. Add the cabbage to the pan with the potatoes and swede. Add the remaining 25g/1oz butter and mash together using a potato masher. Season, to taste, with salt and freshly ground black pepper.

  5. Place the mashed vegetables into an ovenproof lidded dish and top with the cheese. Cover with a lid and bake in the oven for about 30 minutes, then remove the lid and continue to cook for a further 15 minutes, or until piping hot and golden-brown on top.