Squares Salt & Vinegar - 27.5g

Salt and vinegar sits right at the heart of British crisps. It is the packed lunch, the pub table, the meal deal eaten on a bench, and Walkers is the name most people picture when they think of a bag of crisps at all.

People in Canada go looking for these because the memory is specific. Not salt and vinegar in general, but this shape, this tang, this particular bag. You only get that by having the actual thing in your hand.

It is a single 27.5g bag, one sitting's worth, and it sits flat in the cupboard until you need it. Keep it somewhere cool and dry and it is ready for a lunchbox, a sandwich that needs a sidekick, or the moment at four o'clock when dinner feels a long way off.

Walkers makes a whole run of crisps, and people rarely stop at one bag. Most baskets that start with Squares end up with a few other British snacks in them too, plus a bar of chocolate for balance.