White bread sliced banana with prawn cocktail crisps. Try it.
My kids are getting into banana sandwiches at the moment. LOL
When I was growing up my mum (Old Mrs Elf) would butter bread and put sugar in it making a sugar sandwich. Or butter digestives and put sugar on those. Come to think of it maybe that's why I and only 4 foot tall?
Can't beat banana sandwiches with a slight sprinkling of sugar. As for crisp sandwiches I keep it simple, salt and vinegar or ready salted Walkers crisps on buttered bread.