Mr Francis says he was approached by an ‘A-list celebrity’ to create the very specific flavour for a party, and spent a few days perfecting the recipe.

He said: ‘It’s all very secretive. We had to sign a confidentiality agreement so I can’t reveal the name of the client.

‘All I’m allowed to say is it was for a party and that they were very happy with the end result and that I made “the required amount”.’