Today’s invention is a paper-wrapped chocolate bar which contains paper-wrapped chocolate bars.
Removing the outer wrapper allows one to break the chocolate layer off the inner bars. This can be eaten, leaving the inner bars still wrapped.
Still feeling peckish? The inner bars can themselves be unwrapped, shedding chocolate to eat and another layer of wrapped bars.
This allows a block of chocolate to contain separately-flavoured interior packs as a pleasant surprise.
Also, the requirement to unwrap at each level allows one to pause, rather than devour the whole thing instantly (thereby helping overweight people limit their sweet intake, to some extent).
(It would be possible to enrobe wrapped bars in liquid chocolate and then wrap the result -several times…thus providing an extra measure of hygiene too).