The answer is: Dipped a piece of bread and passed it to him

Matthew 26:23 - a custom to take a piece of bread or meat wrapped in bread and dip it in a bowl of sauce.

In that pivotal moment during the Last Supper, the act of dipping bread serves as a dramatic revelation, rich with cultural significance! This gesture isn’t simply an everyday meal interaction; it's a deeply meaningful tradition in Middle Eastern hospitality. By sharing this food, Jesus demonstrates an intimate connection, emphasizing trust, which makes Judas’ betrayal all the more poignant.

In that same scene, you might notice that Judas doesn't faze easily, even as the incredulous others question who among them is the betrayer. This also points to a profound human aspect of betrayal—as those closest to you might be the ones who hurt you the most. In scripture, the Last Supper is a prime example of how Judas' betrayal is framed not as a side character's choice, but an integral part of the divine narrative leading to the resurrection.

An interesting historical footnote: such eating customs haven't faded away! Many cultures today continue the tradition of sharing mezze-style meals—highlighting how food can symbolize unity or, conversely, fracture relationships.

Moreover, echoes of betrayal resonate throughout the Bible's narrative, from the deception in the Garden of Eden to David's own experience with Absalom. This thread teaches an enduring lesson: each individual’s actions resonate beyond the immediate moment, linking our choices to the larger tapestry of human experience. So, in examining this act of betrayal, we grasp not just a story about one man, but the timeless complexities of trust, loyalty, and the human condition.