Yeast extract is a yeast product with a rich, salty flavor used as a spread like peanut butter. Popular name brands include Marmite and Vegemite. These products are common in Australia, New Zealand, and Great Britain. These extracts can also be used to add more depth to certain soups, sauces, and even bread.
All of the yeast extract are high in sodium but also very high in B vitamins. Some contain MSG so you may also want to look for brands that display No MSG on the label if you are sensitive to that ingredient.
Yeast extract has become more popular in the U.S. so look first at you local well-stocked grocery store. It can be found at some Whole Foods markets. You can find various brands at Amazon.com Yeast Extract
You can substitute one brand of yeast extract for the other. So substitute Marmite, Vegemite (less sweet) or a product called Promite. The taste can vary so you may want to test the available brands to see which you prefer. Alternately you can substitute per tablespoon needed: 1 tablespoon brewers yeast OR> 1 tablespoon nutritional yeast flakes OR> 1 tablespoon miso OR> 1 tablespoon peanut butter (for use on toast)
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