Can you ring them and ask them?
yeah might have to do... i just don't want to waste a container of lebneh by getting the proportions wrong. for some reason i get really OCD or whatever about things like that.
Lots of people are happy to share recipes if you ask nicely. Give it a go if you can't get back over there soon. Alternatively, next time you are over there lavish praise on the stuff to butter them up, then explain your unfortunate circumstances and hit them with a request for the recipe.
Devious, treacherous, murderous, neanderthal, sub-human of the West.