"Salt is the most common seasoning for pretzels, complementing the washing soda or lye treatment that gives pretzels their traditional skin and flavor acquired through the Maillard reaction. Other seasonings are cheeses, sugar, chocolate, cinnamon, sweet glazing, seeds, and nuts. Varieties of pretzels include soft pretzels, which should be eaten shortly after preparation, and hard-baked pretzels, which have a long shelf life." - (en.wikipedia.org 01.03.2020)
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