In a comparison completed in 2019 of 58 countries, Indonesia ranked the highest in leek production with 590,596 tons. This accounted for 26.9% of leek production in the entire world. Turkey came in a very distant second place with approximately 225,000 tons. South Korea, Belgium, and France rounded out the top five.
Leeks are readily found in French cuisine, most commonly known as an ingredient in chilled Vichyssoise soup. In Turkey, leeks are sliced thickly, boiled, and stuffed with rice-based fillings. Cock-a-Leekie soup is popular in Scotland, while potato leek soup is popular in America.
Source: tastingtable.com