When preparing sushi or, really any dish in general, it is good to keep in mind the concept of umami, a Japanese word meaning u0022essence of deliciousnessu0022. Though the word is Japanese, the meaning behind it is universal.It is the savory flavor of meat, vegetables, fish, aged cheese, mushrooms and many other foods. Learn how to best combine these foods for a dish that accomplishes umami, making the diner desire more.The first sushi bar in the United States opened in Los Angeles in 1966…