I left in 1980, and quite honestly have not missed it a great deal. There are however a couple of things that just are not obtainable outside of the wet little island.
Primula cheese spread was a favorite, up until my first wife and I got divorced we had an illegal trade in the stuff going. Her relatives would smuggle the stuff into Canada or the US.
My new (and very adorable) wife is from New Orleans, she can get Cajun Spices, Soft Shelled Crabs, and just about anything else from there, but it's just not the same as Primula! hahahahahaha
I think I am going to start a political movement, maybe call it the "Cheese Spread Party" to get Primula in Canada!