The 15-minute soup using ‘healthiest vegetable on Earth’ that’s the perfect winter warmer packed with nutrients

AN UNDERRATED superfood has been hailed as the healthiest vegetable on Earth – and it creates the “most delicious” soup.

You’d be forgiven for assuming that kale or spinach would top the list for number one veg.

E+ - GettyWatercress has been hailed as the healthiest vegetable on Earty[/caption] Photolibrary RM - GettyWatercress soup is a ‘bowl of health’ that’s perfect for winter[/caption] GettyTV chef Raymond Blanc shared his simple recipe for making the soup[/caption]

But it’s actually the humble watercress...