So, I put out a question onto a SW group on FB, which has been invaluable in providing tips, and the general consensus was that I should make a chutney. Someone very thoughtfully provided a recipe, so as one good turn deserves another, here is a recipe card:

to make onion jam:

Because I’m a bit prissy, I generally don’t like sweetener as it’s an awful amount of chemicals for nothing at all. Just use a bit of sugar or even better, honey. If you want to make it with sugar, add a good tablespoon and call it five syns, but sweetener will be free. Add to sterilised jars (dishwasher, highest temp, leave to air dry) and it’ll keep for a few days in the fridge. Perfect with meat!

J