Tarts are great to make as they are easily made and can be packed to take on picnics. This recipe uses red onions, as they had a distinct taste. There is one problem with onions and that is when you peel them they can make you cry!
How can you avoid crying when cutting onions? Chill onions for 30 minutes before preparation, it's easy as that! The reason why they make our eyes water and sting is due to the release of gas that forms when an onion is pierced. When the gas meets the eye, it turns into a mild form of sulphuric acid!