Pre-heat the oven to 180C (160C fan)/350F/gas 4. Peel and quarter the parsnips, and cook in boiling, salted water until tender, drain well and mash.

Grease a loaf tin approximately 20cm x 10cm x 7cm, then line with foil, and grease this generously.

Blanch six savoy cabbage leaves in boiling, salted water for two minutes: you’ll need enough to line the tin with overlapping leaves, but how many depends on the size of your cabbage, so make sure you have enough before you tip away the water.

Immediately plunge the leaves into iced water.

Toast the hazelnuts in a frying pan over a high heat until starting to colour, then set aside.

Turn the heat down to medium, add the butter and chopped onion and cook for five minutes.

Add the mushrooms and cook for another seven minutes until nicely softened.

Roughly chop the hazelnuts and put them in a large bowl along with the chopped chestnuts, crumbled stilton, breadcrumbs and chopped sage.

Add the mashed parsnip and softened onions and mushrooms followed by the beaten egg. Season and stir together well.

Line the prepared tin with overlapping cabbage leaves, leaving any excess hanging over the sides, then spoon in the mixture, pressing it down well, and fold any overhanging cabbage leaves back over the top.

Cover tightly with foil and bake for 45 minutes. (Alternatively, you can keep it in the fridge for a day or so before baking.)

Remove the foil from the top and put the loaf back in the oven for another 15 minutes, then take out of the oven and put a large serving plate over the top of the tin.

Holding the tin with oven gloves, turn the plate over so the loaf inverts on to the plate.

Carefully peel off the foil and cut into slices to serve.