Noah Kagan has a list of what to look for when you get the cravings for Mexican food. Here’s how to identify authentic Mexican restaurants:
1. They serve horchata. Mexican sweet cinammon drink.
2. They don’t have any advertisements outside the door.
3. They don’t have white people working there.
4. They charge extra for chips.
5. The place is not the cleanest out there.
6. It has the word “la” or “el” in its name.
7. The burrito must cost less than $5.

After all my experiments in the Bay Area, I completey agree with this list. My favorite is Taqueria El Grullense in Palo Alto, CA.