The title for this is inspired by the classic Roald Dahl story, although we can promise that it will taste a lot better and, although marvellous, won’t have quite the same effect! It’s essentially an alcoholic smoothie and is a great combination of dessert and after-dinner liqueur. Definitely not one for the kids. We like to serve this in little milk bottles with straws.

© Recipe taken from Feeding Friends by Terry and George published by Hodder and Stoughton (£20.00)  © Image – Georgie Clarke.