These are the Spanish wines I had in mind which could taste in a similar way. They are different from ordinary sherry, which is a blend. Both "Fino" and "Manzanilla" are both Spanish favourites but I do not think that they are popular in Britain. Anyway, here is an explanation much better than the one I could try to give you:
Basic Juice - the wine blog for my generation: Odd Grape Week: Manzanilla Sherry
Anyway, they are pale in colour, not the deep golden colour described by Nielo.
I think that we should make an effort to try this very special Italian wine, which sounds great. ... In small quantities, though, as I think that the effect of the higher alcohol content will be powerful.