If you've been cutting a small cross in the base and then boiling, you've been destroying the flavour of the sprout, according to expert Matthew Rawson.
In an interview with The Sunday Telegraph the chairman of the Brassica Growers Association said steaming, stir-frying or microwaving are a better option.
He also credits a renewed interest in the dish with recipes that include pancetta or chesnuts.
He said: 'Boiling them was traditionally the way of doing it, but putting the cross in puts in too much water.
'They turn soggy and rubbish. People who do that have ruined the Brussels sprout.'
He added: 'People now are learning that it is a very versatile vegetable. The big ones lend themselves well to a stir-fry.
'People are steaming them, and there are fancy microwave packs. It is being driven forward by people who are more creative.'
The sprout farmer has teamed up with Aaron Craze to set up the website loveyourgreens.co.uk.