What does Arugula Taste Like?

Arugula leaves have a spicy, peppery flavor that varies in strength according to the type of arugula and the conditions under which it was cultivated, according to Mashed. The Independent reports that isothiocyanates, a chemical molecule that acts as a natural defense against wild herbivores, are the cause of the spicy flavor (and an attractant for hungry human vegetarians).

Humans respond to isothiocyanates in diverse ways depending on their genes. Some people find arugula to be extremely bitter, while others appreciate the peppery flavor. Arugula's peppery overtones may intensify if the growing conditions were hot, dry, and sunny enough for the herb to grow quickly. The flavor of arugula is best when eaten raw, but it can also be cut when cooked or mixed with the right contrasts.