They are "raw" tortillas so you have to cook them. It is so simple, heat a skillet and throw a raw tortillas on top.
When it starts to dimple, flip it over and cook the other side.
Pretty slick, eh? Not only do they taste better than most store bought tortillas, they keep well too! The pack from Costco have two 22-count packages. We simply keep one in the refrigerator and one in the freezer. They thaw out great.
Seriously, these tortillas are awesome. We use them for breakfast burritos, mu shu pork, and eat them plain. Check them out!