This is exactly the sort of thing I like bringing back from Lebanon: small enough to fit in a bag, but specific enough to remind you where you bought it. The best version is usually the sealed jar, tin or packet from a normal supermarket, spice stall or food hall, not the most expensive tourist version. It is also the kind of thing you can talk about when someone asks what you brought back, because there is usually a little story attached to where you found it.
When I think of an easy, crowd-pleasing thing to bring back from Lebanon, baklava box is a good pick because it does not need much explanation when you hand it over. Look for a boxed version with a decent date on it, especially if you are buying it near the start of the trip rather than at the airport. I would rate it higher when it is locally made, clearly labelled and easy to use at home, and lower when it is just tourist packaging.
Arak bottle is worth adding because it feels like something you actually noticed while travelling through Lebanon, rather than a generic souvenir. For alcohol, I would only bring this back if it is sealed properly and comfortably within the UK allowance; otherwise it is better as a UK-buy link. The ideal version is modestly priced, not too bulky, and good enough that you would buy it again even without the holiday memory.