Marmite is a savory spread made from yeast extract, a byproduct of beer brewing. It was accidentally discovered when a German scientist, Justus von Liebig, found that brewer's yeast could be concentrated and consumed. The Marmite Food Company was formed in 1902 in Burton upon Trent, England, to produce and package Marmite. Today, it is manufactured by Unilever. Marmite has a distinctive, strong, salty, umami flavor that is considered divisive, with the slogan "Love it or hate it".
Marmite is rich in B vitamins, including thiamine, riboflavin, niacin, folic acid, and vitamin B12. It's traditionally eaten as a thin spread on toast, bread, crackers, or biscuits, often with butter. It can also be used to enrich stews, casseroles, and other dishes. Besides the original flavor, there are variations such as Marmite Truffle, Marmite Crunchy Peanut Butter, Reduced Salt Marmite, Marmite Chili, and Marmite XO. Marmite is widely available in the UK and other countries, with prices ranging from around $4.39 for a 125g jar to $21.99 for a 500g jar, though prices may vary.