Okay, so it's no for a black burger... How 'bout some squid ink pasta?
http://dollyrubianophotography.com/recipes/pasta-negra-seafood-spaghetti-in-squid-ink-sauce/

hilarious take on squid pasta in an anime:
http://www.youtube.com/watch?v=tuGenjKZU5I
(note: the girl with blue hair and funny-looking hat is actually a squid that has taken human form in part of a plan to conquer humanity as revenge humanity polluting the sea)

>If I have to choose between that one, and the black burger they sell in Japan, I prefer to go hungry.
>
>>http://metro.co.uk/2014/09/22/so-someones-gone-and-created-a-burger-which-tastes-of-human-flesh-4876283/
>>
>>perhaps I don't want to know how they may have confirmed the authenticity of flavour...
>>
>>I think I'll just stick to the green soy and lentil wafers (as described in novel, not the version form movie based on the novel)...

tuGenjKZU5I