Jesus answered, “It is the one to whom I give this piece of bread when I have dipped it in the dish.” So when he had dipped the piece of bread, he gave it to Judas son of Simon Iscariot.
John 13:26
(Notably, John is missing a Eucharist ritual, but has this passage trying to explain why Jesus was feeding Judas bread at dinner. The same activity of Judas partaking in dipped bread appears in Mark 14:20 too, right before its Eucharist ritual: "He said to them, 'It is one of the twelve, one who is dipping bread into the bowl with me.'")
Was Mark an apostle? My memory may be glitching, because I have the impression that only Matthew and John were actual original apostles. About Luke I am certain that he was from Greece and several decades later.
Ah, the classic communion wafers joke! Remember, they're not just a snack; they come with a lot of meaning for many people. But hey, sometimes humor helps us see things froma new perspective!