Many years ago I came back from a trip to France with a serious merguez jones. Merguez are ground lamb sausages, cigar-shaped and highly spiced, from the Morocco-Algeria part of the Middle East, hence their prevalence in Paris where even 15 years ago they had escaped the ethnic realm and made their way onto bar menus generally. Cooked right, they are delectable, spicy, gamy. Overcooked, as is so easy with lamb, they're dry and chewy.
I watched and shopped for them for years. Here's my list of what I found, please add to it:
--Packaged gourmet merguez at Marcey St. Market. They were okay, a little too packaged-preserved tasting. I also learned about overcooking lamb the hard way with these, many years ago. All in all, kind of like those chicken sausages you get at Whole Foods that leave you thinking "This isn't bad for something made from the wrong frickin' ANIMAL for sausage."
- Le Loup-- okay French-middle eastern place, I think may now be closed, near Leona's on Sheffield. I was excited when I saw them on the menu, less excited when I got them as I recall, though not sure why.
--That little Turkish coffeehouse place on Lincoln near Wellington that isn't Cafe Demir or A La Turka-- these were the most real-seeming I've had, pretty good flavor and cooked properly, all in all the best thing I had at this place which remains a bit inconsistent in my book. Not sure if they were made inhouse or bought from somewhere, but fresh all the same.