Creature of the Fae (name unknown)

These curious sapients exist just outside of our plane and can sometimes be spotted by the sensitive. They are often seen where food is being made, such as the kitchens of restaurants. It is believed that they somehow share in the essence of the location, though not the physicality of it, in order to enhance the value of their own food. In exchange, deliberate or not, they grant some measure of popularity to earthly establishments, if not outright success, a sort of 'luck'. What they take in return is not known, but it does not seem to be important to humans or their nutrition. They are benevolent, as far as anyone can tell.