I've posted my notes on 14 supermercado taquerias in
a separate thread, but here's more info on Saturday's adventures:
Besides wanting to introduce my finds to more people, I was eager to visit some of them in a larger party that would allow me to explore their menus in greater detail. So if you're interested in checking some of these taquerias out, I'd recommend these three first as not only three of the best but offering a good cross-section of the scene and what's to be had at different places. Our first stop was
Los Potrillos:
This is a small taco grill that really does first-rate steak tacos, cecina tacos, etc., thanks to an excellent grillman who serves good quality meat hot and juicy off the grill in big, tender chunks. We also ordered the consomme de chivo which had impressed me on an earlier visit, though it was kind of watery and not as exciting this time— maybe it would have been better after cooking down for another hour or two. (The pot on which Consomme de Chivo is painted in big letters was curiously missing as well.)

Next was
Taqueria Ricardo. Besides the best atmosphere (you wouldn't necessarily know you were in a supermercado at all, as it's pretty separate), a ramshackle riot of tile that suggests the over-the-top exuberance of Mexico, this has such an extensive menu that we wound up really having a full (very full) lunch here. Chicken grilled over live fire was a star here, but so were pastor tacos served at the peak of grilled crispiness, an excellent green salsa-poblano tamale, a lively caldo de siete mares (soup of the seven seas) with a big langoustine plopped right in it, a weekend special of barbacoa de res, and more. (Though one I wouldn't recommend was David Hammond's choice of pickled pig's feet, which proved that there is a lot of fat and not much meat on a pig's foot.) This is really a great Mexican restaurant in both food and atmosphere, which deserves wider attention and discovery.
Taqueria Ricardo; above: chicken over heater, below: caldo de siete mares, pickled pigs' feet.

Finally we headed down to La Villita to
Carniceria Aguascalientes, which has a large cafeteria-style area built on the handmade gorditas that are its star attraction. Pork in red and green salsas and a poblano-cheese filling all proved to be worthy fillings for the wonderfully warm and nurturing freshly-fried gorditas.

Thanks to all who came along with me on Saturday and I hope many more will follow in our footsteps.