Bertie Botts Every Flavor Beans

Bertie Bott's Every Flavour Beans were one of the most popular sweets in the wizarding world. Invented by Bertie Bott, they were almost the same as Muggle jelly beans, except the range encompassed every flavour imaginable.^[2] There was also no way of telling for sure what flavour any given bean was without tasting it, although you could try and guess by the colour.

There were ordinary flavours like chocolate, peppermint, and marmalade, but also less fanciable ones like spinach, liver, and tripe.^[2] There were also flavours that were not actual foods like grass, farm dirt, vomit, earwax, paper, and bogeys.

"You want to be careful with those. When they say every flavour, they mean every flavour — you know, you get all the ordinary ones like chocolate and peppermint and marmalade, but then you can get spinach and liver and tripe. George reckons he had a bogey flavoured one once. Bleaaargh — see? Sprouts."— Ron Weasley's warning^[src]

^{Source: Harry Potter Wiki}