Potatoes were an Earth-based vegetable, often used to make foods such as chips and crisps.

The Doctor was once imprisoned in the Tower of London with Sir Walter Raleigh, who kept going on about the potato, which he'd discovered. (TV: The Mind of Evil)

Peri Brown once found herself in a dimension modelled upon a combination of the Alice in Wonderland book she had been reading and the salad she had been eating. Among the creatures she met in this world were the King and Knave of Spuds, a pair of talking potatoes who nearly executed Peri for the heinous crime of eating vegetables. (COMIC: Salad Daze)

The Seventh Doctor cooked a breakfast of fried eggs, bacon, sausages and fried potato slices for Justine and Vincent Wheaton at Smithwood Manor. (PROSE: Cat's Cradle: Warhead)

The Sontarans were said to look like potatoes, specifically baked potatoes, on several occasions. (TV: Eye of the Gorgon, The Sontaran Stratagem, The Last Sontaran, The Snowmen)

Learning that a Slitheen feared Clyde Langer's cold chip sandwich, Maria Jackson briefly suggested the Slitheen were allergic to potato before Sarah Jane Smith recalled seeing a Slitheen eating a sandwich. (TV: Revenge of the Slitheen)

After Gwen Cooper and Rhys Williams hid in a truck filled with potatoes to escape to London, Gwen said, "Rhys, you are not eating uncooked potatoes", after Rhys had asked her for a knife. (TV: Children of Earth: Day Two)

in 2018, Ramón Salamander's chef Griffin, after being unimpressed with Victoria Waterfield's recipe for Kaiser pudding, assigned Victoria to peel potatoes. (TV: The Enemy of the World)

In 2075, the First Doctor, John and Gillian used potatoes as makeshift weapons to defeat the space pirates on Anastas Thrax's space station. (COMIC: The Hijackers of Thrax) Later, in 1800, the Tenth Doctor similarly used potatoes in combat. Onboard an American schooner in the Caribbean Sea during the dying days of the Quasi-War, he used potatoes, turnips and molasses to create an organic mixture capable of clogging proton cannons. (COMIC: Second Wave)

Potatoes were among the plants kept in the plant museum near Brittanicus Base. (TV: The Ice Warriors)

The Alovians believed all problems could be solved with potatoes. (PROSE: Doctor Who and the Krikkitmen)

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