A few weeks ago, I was having dinner in Carluccio's in Bicester, and the deli was still open after we'd finished eating, so we wandered around looking for yummy things to buy, and I found cuttlefish ink! My companion was rather baffled by my extreme excitement over a small and unassuming box, but last night's dinner (and today's lunch) proved that my excitement was entirely justified :-) smiorgan made black pasta*, and it was amazing - the sauce that had been bright tomato-red halfway through cooking was black by the time it reached our plates, and the flavour was... well, indescribable, really. Strong, and a bit fishy, but unlike anything else I've ever eaten, and absolutely delicious.
Eating my lunch today, I kept having to restrain myself from giggling at my black, tentacular food :-)
*Note that this icon is perfectly appropriate, because that recipe does indeed start with "fry an onion and some garlic".