It's time to start clearing out the freezer ahead of our next overseas move -- I have a large package of frozen kaffir lime leaves. I saw a suggestion about 'infusing a sugar syrup...' with them. I always have a heavy lemon syrup in the fridge for sparkling lemonade (Old 'Joy of Cooking' version) and was wondering if a limeade with a couple of handfuls with the kaffir leaves would work. Thoughts? Other ideas?