Soup sales are up by nearly 50 per cent at Waitrose, compared to last year.

Sales of frozen raspberries and apples, meanwhile, were up 38 per cent at the retailer.

Elsewhere, the trend to make your own preserves is seeing growth with Seville oranges – now in season and famed for their use in marmalade – are up 20 per cent.

Horticulture has also enjoyed a strong January, the retailer reported, seeing sales grow 9 per cent year-on-year. Online flower orders have been particularly popular, with demand up more than 30 per cent.