During the Viking Age, bread was usually baked in the form of flat cakes on embers, directly on the stone slab or on so-called frying pans, flat plates with long handles that were held over an open hearth. There were also occasional vaulted baking ovens for larger leavened breads.
The higher you were on the social ladder, the finer bread you ate. Flat breads were often used as plates to eat from. The sauce from what you ate was then absorbed by the bread and eventually you could sink your teeth into the bread - if you were still hungry. In the cases where the bread was eaten as a plate, the bread was of a coarser kind.