Thank you to everyone who entered the competition - nobody got the answer completely right - but I didn't expect anyone to guess it!
It is ELDERBERRY COUGH LINCTUS
Two people got the ingredient correct and they were both comments on here - none of the Tweets was even close. So, I am going to take the first received which you can see from the timeline is Sue Mckenzie. .
If you can email me your details Sue I will get the prize packed up and off to you this week - very well done.
You may think this preserve a bit weird but in the Middle Ages the elder tree was known as the 'cure-all tree' and every home had a tree by the front door. Every part of the tree was used for different purposes, both medicinally and for preserves and dyeing. The berries are very high in Vitamin C and especially effective against coughs and colds. The honey and ginger are anti-bacterial while the spices bring a lovely warmth which soothes a sore throat. You may scoff at all of this, but I have been reading that elderberry juice is being used in hard to treat flu cases which have become resistant to vaccines.
If you want to make your own, leave a comment and I will post the recipe. It tastes yummy.