gosari
Gosari is low in calories and contains dietary fiber, potassium, and trace minerals. It also provides antioxidants and compounds with potential anti-inflammatory properties, though nutritional content varies depending on growing conditions and processing method.
About
Gosari (고사리), also known as bracken fern or Japanese fern brake, is the young, coiled frond—called a crozier or fiddlehead—of Pteridium aquilinum subsp. japonicum. Native to East Asia, particularly Korea, this perennial fern is harvested in spring when the fronds emerge from the soil in a tightly spiral form. The unopened fronds are tender, with a delicate texture and a subtle, slightly earthy flavor with mild nutty notes. Once cooked, gosari becomes more tender and develops a unique umami quality that distinguishes it from other fern varieties used in Asian cuisine.
Gosari is commonly dried and reconstituted for year-round use, though fresh gosari is considered a seasonal delicacy in Korean cuisine. The dried form is dark brown to blackish and requires soaking and boiling before culinary application.
Culinary Uses
Gosari is a staple ingredient in Korean cuisine, most famously featured in gosari namul—a seasoned vegetable side dish (banchan) of blanched, drained fronds dressed with sesame oil, garlic, and soy sauce. It is also incorporated into bibimbap (mixed rice and vegetables), soups, stir-fries, and grain rice bowls (dolsot bibimbap). The ingredient is often parboiled or blanched to remove bitterness and soften the texture before final preparation.
Outside Korea, gosari appears in Japanese and Chinese regional cuisines. When preparing gosari, soaking and thorough cooking are essential to ensure tenderness and food safety. It pairs well with sesame oil, soy sauce, garlic, and other vegetables in Asian preparations.