Important Note about Salt: Not all salts are made equal and cannot be substituted 1:1. If you are substituting table salt for kosher salt, you will need to cut the amount called for in the recipe by at least half.
Avoid purchasing stiff or frozen corn tortillas. Even if the tortillas are fresh, wrap the stack of corn tortillas in a damp paper towel and microwave for 15-30 seconds to steam them. This will prevent them from cracking. The goal is to achieve maximum softness without making them soggy or stiff.