The Yowk pre - cooked egg simply needs reheating for 30 minutes to achieve the perfect yolk , say the manufacturer . Packs will retail at £ 1.79 each and are complete with an egg cup , spoon , soldier - style spoon and spoon . The product is likely to reach supermarket shelves in May .
The Yowk pre-cooked egg simply needs reheating for five minutes to achieve the perfect yolk , say the makers . Packs will retail at £1.79 each and come complete with an egg cup , spoon , soldier-style breadsticks and salt . The product looks likely to hit supermarket shelves in May .