Do you like rockling? Don't tell me you don't know, you've never rockled. I saw some rather attractive fish at Blackheath market this morning, so asked the stallholder what they were. "Three-bearded rockling" he said. "We don't normally sell them, but use them as bait. I've never eaten one but I know people who have, who say they're just perfectly fine white fish." This wasn't convincing me, but then he said "They're a pound a fish", so I bought one.
Got home and looked in Hugh Fearnley-Whittenstall's fish book. Not a mention. On the web, hardly anything. Safest, I thought, to take off the fillets and shallow fry them, with a bit of seasoned rice flour coating.
And they are perfectly nice white fish. A fairly soft and open flesh, and a surprisingly good taste. And the head and bones will make a super stock, I'm sure.