Caramel was a shade of brown named after a certain filling for chocolates and cakes.
The Eighth Doctor wore caramel brown boots; (COMIC: The Pictures of Josephine Day, A Matter of Life and Death, The Lost Dimension) right up to his death on Karn during the Time War. (TV: The Night of the Doctor)
The War Doctor wore the Eighth Doctor's caramel boots for a time. (TV: The Night of the Doctor; AUDIO: Light the Flame; WC: Doctors Assemble) He also wore a double-breasted trenchcoat of caramel brown leather with peaked lapels when working with Alice Obiefune and the Child Master. (COMIC: First Rule, The Organ Grinder, Kill God, Fast Asleep)
The Fifteenth Doctor wore an overcoat and trousers of caramel brown tweed with black overchecks when searching for goblins during 2023, (TV: The Church on Ruby Road) and during an adventure on Finetime. (TV: Dot and Bubble)
Yasmin Khan wore caramel boots during the year 1904, the 2021 Sontaran Invasion of Earth, and the Flux. (TV: Survivors of the Flux, The Vanquishers)
Amy Pond wore caramel cowboy boots. (TV: Victory of the Daleks, The Hungry Earth|Cold Blood; GAME: City of the Daleks, Blood of the Cybermen, TARDIS, Shadows of the Vashta Nerada)
Jenny Flint wore caramel brown boots during the Battle of Demons Run. (TV: A Good Man Goes to War)
Ruby Sunday wore caramel boots when confronting Roger ap Gwilliam in an alternate timeline on 2046. (TV: 73 Yards)
The Curator, a future version of the Doctor, wore caramel brown shoes in his Fourth Doctor form; (TV: The Day of the Doctor); and also his Sixth Doctor form. (AUDIO: The Artist at the End of Time)
Jo Grant wore a caramel brown leather jacket during the Stangmoor Incident. (TV: The Mind of Evil)
The Toymaker wore an apron of caramel brown leather in Soho during 1925. (TV: The Giggle)
The Valeyard wore copies of the Eighth Doctor's caramel boots. (AUDIO: The War Valeyard)