In this ordeal, the priest wrote the Lord's Prayer on the bread, of which he then weighed out ten pennyweights, and so likewise with the cheese. Under the right foot of the accused, he set a cross of poplar wood, and holding another cross of the same material over the man's head, threw over his head the theft written on a tablet. He placed the bread and cheese at the same moment in the mouth of the accused, and, on doing so, recited the conjuration:
The following prayer and exorcism were also used and ordered to be repeated three times:
Legal historian Richard Burn believed that corsned bread may have originally been the very sacramental bread, but that later the bishops and clergy would no longer allow the communion bread for such superstitious purposes; they would however grant the people to use the same judicial rite, in eating some other morsels of bread, blessed or cursed for the same uses.
It has been asserted that this ordeal was specifically preserved for the clergy, however Godwin, Earl of Wessex is said to have been killed in this manner in 1053 while denying that he had any role in the death of King Edward the Confessor's brother Alfred in 1036; however, the primary contemporary source for this information is the Croyland Chronicle, attributed to Ingulph (d. 1109), which has since been shown to be a much later forgery. The practice has long since been gradually abolished. Du Cange observed that the expression, "May this piece of bread choke me!" comes from this custom. Other common phrases of the same origin include, "I will take the sacrament upon it!" and "May this morsel be my last!"