[Sparkologist]

You should fine travelling through Manchester Airport.

The important thing to remember is any medicines & make-up that you are carrying on your person, into the cabin, have to be in a clear, sealed plastic bag. Each item being no bigger than 100ml volume, but no restriction on the number of items in the bag. You cannot take drinks through the security screening, but once you've passed through security and are deemed to be "air side", there are plenty of opportunities to buy food & drink.

You can take your own food on-board the flight. You are not tied to buying food once on the flight. In fact I would strongly advise against it, as all the "cheap" airlines charge handsomely for their wares. Take your own crisps, biscuits, butties or whatever, with you. It will save you a small fortune compared with Ryanair prices. You can take the food through security screening without any problems, but not drinks. You can buy those after security, but before the flight.

Happy flying. I hope you get a window seat and a clear day. The views are fantastic.