What is the name of the spelt cake offered to Jupiter during confarreatio?

The spelt cake offered to Jupiter during confarreatio is known as "farreum libum." Confarreatio was an ancient Roman religious ceremony that involved the marriage of a Roman citizen and included specific rites and offerings to the gods, particularly Jupiter. The farreum libum, made from spelt flour, was a sacred cake used in these ceremonies. This cake symbolized the importance of agriculture and the blessings of fertility and prosperity from the gods, particularly as it was made from a grain that was significant in Roman religious and cultural practices.

Mola salsa refers to a salted flour mixture used in various religious rituals, while panis is simply the Latin word for bread and does not specify the ceremonial aspect of the offering. Libum, while it can refer to any offering or cake made for the gods, is more general and does not denote the specific spelt cake used in the ceremonial context of confarreatio. Thus, farreum libum is the most accurate choice, capturing the essence of this significant ritual offering.