But what exactly is it?

Verjuice is a versatile vinegar alternative made from under-ripe grapes. In Australia, more wineries are now starting to make it. Unlike vinegar, which contains acetic acid (which can react badly with wine, making it taste sharp) verjuice contains tartaric acid, which is not as tart.

So it's great for:

• salad dressings, especially if you're enjoying a glass of wine with your salad.
• deglazing roasting pans to make a quick saucs.
• substituting for lemon juice almost anywhere.

Drink recipe:
A slug of verjuice and a measure of gin over crushed ice and topped up with tonic.

Source: Better Homes and Gardens June 2005