Bacon

From Tardis Wiki, the free Doctor Who reference

Bacon was a food prepared from pigs, originating on Earth. The Tenth Doctor destroyed a Glutonoid with a toxic mixture that was flavoured with, among other things, bacon. (DWBIT: The Glutonoid Menace)

Vicki used the First Doctor's Food machine to create a substance that tasted akin to bacon and eggs adorned with brown sauce. (ST: 1963)

When the newly regenerated Doctor demanded Amelia Pond "fry something" for him, she made him a plate of bacon. He began eating but spat it out in disgust, asking Amelia if she were trying to poison him. (DW: The Eleventh Hour)

Bacon in a sandwich

Bacon