Boiled egg

The Sixth Doctor liked his boiled eggs with a yolk that was neither too runny nor too hard. (PROSE: The Death of Me)

Milo Clancey ate a boiled egg for his breakfast aboard the LIZ 79. He had planned to have toast with it, but this ended up burnt because his solar toaster wasn't working properly. (The Space Pirates)

Albert Goodge had boiled eggs packed in his lunchbox by his wife Elsie. He was eating them when he was killed by the Master. (TV: Terror of the Autons)

According to the Twelfth Doctor, the Starbane could split a star "like a boiled egg". (GAME: The Doctor and the Dalek)