Cadbury Wispa Gold Duo - 67g

Wispa sits in that corner of British chocolate where texture matters as much as taste. Cadbury's bubbly bar has a loyal following, and the Gold version, with its caramel layer, has fans who will argue all night that it is the better of the two.

People in Canada go looking for it because a craving does not care which side of the Atlantic you live on. One bite and you are back at a motorway services, or a bus shelter, or the back seat of a school trip coach.

The Duo is a 67g pack with two bars inside, so you can eat one now and tell yourself you are saving the other. Keep it somewhere cool and dry in the cupboard, well away from the radiator, and it stays as it should.

It tends to end up in a basket with the rest of the Cadbury lot: Dairy Milk, a Twirl, a Crunchie, whatever your own corner-shop order used to be. Build the bag you would have bought on the way home from school.