Cadbury's aren't raking in millions for nothing - they clearly have a very smart business model, as proven by their extremely popular Twirl chocolate bar, which is in fact just a slightly meatier version of a Flake. Think of a Flake but a little less flaky because it's "sealed" with another layer of chocolate, and you have a Twirl.

Ingredients:
Milk, sugar, cocoa butter, cocoa mass, vegetable fat, emulsifier, flavourings

Nutritional Information (per bar):
Calories = 180
2.8g of protein
19.3 of carbohydrate
10.6 of fat
a trace of Fibre and Sodium

The extra structural support with this extra layer means that they're less liable to crumble all over you and leave chocolate stains on your shirt like a Flake. Not to mention, Twirls come with two sticks instead of the requisite one with Flakes - the bonuses just keep on adding up! They also taste absolutely wonderful, with the chocolate being pretty light and melting in your mouth into a sort of stodgy but pleasant chocolate treacle.

Like most of the very best chocolate, Twirls aren't good for you at all, and so they must be eaten in moderation to avoid any unsightly waistband expansion. That said, they are incredibly addictive, and the fact that there's two sticks per wrapper rather than one only compounds the problem further!