It has been adapted to make it easier to cook in a domestic kitchen and offers substitutes for any elements they wish to keep secret (such as the burger seasoning). Firstly, marinate the oyster ...

Tucking into a stacked burger that is oozing with sauce and full ... Mr Deeley said: 'They get the ratios and seasoning right every time, and every bite is as delicious as the first.

Taste and adjust the seasoning ... each burger with the remaining halves. In November 2023 this recipe was costed at an average of £3.98 when checking prices at four UK supermarkets.