|Place of origin||Scotland|
|Region or state||Galashiels|
A Soor ploom (Scots for "sour plum") is a sharp flavoured, round, green boiled sweet originally associated with Galashiels, Scotland. They are sold loose by weight in paper bags, traditionally in "quarters" — a quarter of a pound.
They are said to have been first made in 1337 in commemoration of a skirmish near Galashiels. A raiding party from England were overwhelmed and killed by local men when discovered eating unripe plums.
Former Secretary of State for Scotland Michael Forsyth, Baron Forsyth of Drumlean is known as "the soor ploom" by several Scottish peers in the House of Lords, a reference to his supposedly grim demeanour and alleged propensity to hold grudges.
- Scottish Festivals, Sheila Livingstone, Birlinn (1997)
- Amy Stewart (1975). Dae Ye Min' Langsyne?: A Pot-Pourri of Games, Rhymes, and Ploys of Scottish Childhood. Folklore. pp. 165–6. Retrieved 2008-01-03.
- Neil Wilson (2004). Edinburgh. Lonely Planet. p. 147.
- John Ruskin (1907). The Works of John Ruskin. Longmans, Green, and co. p. 613.
- Francis Collinson (1975). The Bagpipe: The History of a Musical Instrument. Routledge. p. 111.