Where would eggs benedict be without hollandaise, spaghetti without Bolognese, tortilla chips without salsa, or French fries without ketchup? A world without sauces is a dull and dry world indeed. But what exactly are sauces? How did they become a crucial element in every country's cuisine? Maryann Tebben answers these questions in this flavorful history, giving sauces their due as a highly debatable but essential part of our culinary habits.

Tebben begins in fifth-century China with its many fermented sauces, then follows them along trade routes from East to West as they become a...