Do you have a recipe that can be canned (without pressure canning gear)?
I found this one, but it says to put it in the fridge for no more than a fortnight. It also adds sugar, so it's doubly suspect in my book!
Discussion
You should be able to can anything by just boiling the jars in water to force all the air out. I think these recipes are always too conservative about how long you can keep your goods.