Walking distance around the Zócalo is filled with vendors and shops. One of the more random was the Jarritos soda store. We had to stop by to try "Delaware Punch" (aka grape soda). I love Sidral Mundet.
In the mood for something more substantial? There was also the charmingly named Pirates Burgers. (We did not eat here but thought it was offbeat and worth sharing)
Something that did catch our eye was the incredible and overwhelming Pasteleria Ideal.
Not only do they sell colorful gelatine molds, tortes, and pastries, but it's also a huge operation that you can smell a block away of freshly-baked cookies, bread, and more. Definitely worth grabbing a snack!