To book a table for the new Sunday roast at Dinner by Heston, Heston Blumenthal’s restaurant at the Mandarin Oriental in Knightsbridge, you don’t reserve a time. You reserve a batch of potatoes.

Drain them, then spread on a large wire rack to cool. While this is going on, heat the oven to 180C or gas mark 6. Select a large roasting tray, big enough to take all the potatoes, and spread ...

Roast potatoes should make you happy, says chef Heston Blumenthal, inventor of the triple-cooked chip. Here, with Adam Tooby-Desmond, head chef of the two Michelin star Dinner by Heston, which ...