Umami is a rich, savory taste that makes foods deeply satisfying and delicious. It's one of the five basic tastes your tongue can detect, along with sweet, salty, sour, and bitter. The word comes from Japanese and roughly means “delicious flavor.”

You experience umami when you eat foods like Parmesan cheese, mushrooms, soy sauce, or a perfectly grilled steak. It's that meaty, brothy taste that makes you want another bite. Tomatoes have umami, which is why tomato sauce tastes so good. So does chicken soup, especially after it's been simmering for hours.

Scientists discovered umami much later than the other basic tastes. A Japanese chemist named Kikunae Ikeda identified it in 1908 when he wondered what made seaweed broth taste so satisfying. He isolated a substance called glutamate, which creates the umami sensation.

Many cultures stumbled onto umami-rich ingredients long before anyone named it: the Romans used fermented fish sauce, the Chinese developed soy sauce, and the English created Worcestershire sauce. These condiments all pack concentrated umami flavor that enhances other foods. When chefs say a dish needs depth or richness, they're often looking to add more umami. That's why a sprinkle of Parmesan or a splash of soy sauce can transform a simple meal into something memorable.