How to make mint sauce

We have lots of mint growing on Dad's allotment so we have used some of it to make mint sauce. Start by stripping the leaves from the stalks and then chop them. Put the chopped leaves in a bowl and mix in a small amount of sugar. Leave to stand for an hour and then add white wine or cider vinegar and sugar to taste. Mix thoroughly and store in jars. Leave for about a week before using.