Where do people find mackerel? I see all of these great recipes - looking at the beet, celery root, and smoked mackerel in Plenty most recently. I live in LA, so it shouldn't be too hard to track down. But I can't find any kind of mackerel at regular grocery stores or Whole Foods. Actually, that's not quite true -- the WF fish guy went into the back where he pulled out a frozen pack of peppered mackerel at $17.99 for 12 oz. That seems a bit steep.
I'm eager to learn to use a new fish for me that seems to be gaining in popularity. But wonder where to find it. How much should it cost? Any favorite recipes?