No Sunday roast is complete without a liberal helping of roast potatoes - but achieving perfect spuds can prove quite the challenge.
Luckily, Michelin-starred chef Heston Blumenthal has now revealed his trick for achieving roasties that are crispy on the outside, fluffy on the inside, every time, reports the Daily Mail.
The experimental chef does subscribe to the tried and tested method of parboiling ahead of roasting, but he says the trick is to extend the boiling time.
While many cooks will agree that parboiling potatoes for 10 minutes is more than enough time, Heston tells The Guardian they should be left bubbling away for at least 20 minutes.
Living up to his reputation for the unconventional, the chef also recommends adding the potato peelings to the boiling water, a trick he says enhances the flavour.