Miso
noun
A flavor that makes foods boisterous is a great flavor. In this case, it's the flavor of miso, which goes in a lot of Japanese dishes, and certainly does make the flavor of things boisterous.
みそ
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
味噌と醤油は和食には欠かせません。
Miso and soy sauce are essential for a Japanese-style meal.