[ Thanatos already planned on carrying some with him to give others when things went bad. There's enough that he can do that. (Although, his bag is starting to get really full from all the things he brings for others to use. He may need to solve that problem in the near future.) ]

I don't know. I don't think my brother puts any kind of blessing on them. It's not speed related, so I hesitate to say that Hermes might have.

[ He considers it more. How does it get that power? ]

It might be some form of cooking that does it. The Exalted Shades in Elysium have access to goods such as this. I don't see a consistently replenishing those.