Gosari Namul (Seasoned Bracken Fern)
Rehydrated bracken fern stir-fried with soy sauce, sesame oil, and garlic — the essential bibimbap topping and Chuseok table staple with 4 million views.
Why This Recipe Works
- Overnight soaking + boiling + passive steaming produces perfectly tender gosari without the rubbery texture that rushes the process.
- Perilla oil adds a uniquely Korean herbaceous nuttiness that elevates the dish beyond basic sesame.
- Sauce reduction method ensures every strand is deeply seasoned rather than sitting in liquid.
- Versatile serving — works as standalone banchan, bibimbap topping, or jesa (ancestor ceremony) offering.
The Mountain Vegetable
Gosari is the quintessential Korean mountain vegetable (snamul). Before modern farming, Korean villagers foraged bracken fern from hillsides every spring, dried it for year-round use, and it became one of the most important ingredients in Korean temple and home cooking. Today it remains essential for bibimbap, jesa tables, and Chuseok celebrations — a 4-million-view video on the right technique tells you how seriously Koreans take their gosari.
Gosari Namul (Seasoned Bracken Fern)
🛒 Ingredients
- ✦4 oz dried gosari (bracken fern)
- ✦2 tablespoons soy sauce
- ✦1 tablespoon sesame oil
- ✦1 tablespoon perilla oil (or additional sesame oil)
- ✦3 cloves garlic, minced
- ✦1 teaspoon sugar
- ✦1/2 cup anchovy-dashima stock (or reserved soaking water)
- ✦1 green onion, sliced
- ✦Toasted sesame seeds for garnish
- ✦1 tablespoon vegetable oil for stir-frying
👨🍳 Instructions
01Step 1
Soak dried gosari in cold water for 8-12 hours (overnight is best). The ferns will expand to 3-4 times their dried size.
02Step 2
Drain soaked gosari. Place in a pot with fresh water, bring to a boil, and simmer for 30 minutes until tender but still slightly chewy. Drain.
03Step 3
Trim off any tough stem ends. Cut into 3-inch pieces.
04Step 4
Heat vegetable oil and perilla oil in a pan over medium-high heat. Add garlic and stir-fry for 30 seconds until fragrant.
05Step 5
Add gosari and stir-fry for 3 minutes, coating every piece in the oil.
06Step 6
Add soy sauce, sugar, and stock. Toss to combine. Cook for 5-7 minutes, stirring occasionally, until most of the liquid is absorbed and the ferns are glossy and deeply flavored.
07Step 7
Drizzle with sesame oil. Garnish with green onion and sesame seeds. Serve as banchan or as a bibimbap topping.
Nutrition Per Serving
Estimates based on standard preparation. Adjustments alter macros.
🔄 Substitutions
Instead of Dried gosari (bracken fern)...
Use Fresh fiddleheads
Skip soaking — blanch for 3 minutes, then stir-fry. Available briefly in spring.
Instead of Perilla oil...
Use Extra sesame oil
Less complex but still delicious — double the sesame oil
Instead of Anchovy-dashima stock...
Use Gosari soaking water
The soaking water has flavor — use it instead of plain water
🧊 Storage & Reheating
In the Fridge
Store for up to 5 days. One of the longer-lasting banchan.
In the Freezer
Freeze rehydrated (uncooked) gosari for up to 3 months. Season fresh after thawing.
Reheating Rules
Best at room temperature. Quick pan toss with a drop of sesame oil refreshes it.
❓ Frequently Asked Questions
What does gosari taste like?
Gosari has a unique earthy, slightly nutty flavor with a chewy, almost meaty texture — unlike any other vegetable. It tastes like the forest floor in the best possible way. The chew is similar to bamboo shoots but more delicate.
Is bracken fern safe to eat?
Yes, when properly prepared. Raw bracken contains ptaquiloside, a carcinogen, but thorough soaking and boiling eliminates it completely. Koreans have been eating gosari for centuries — the traditional soaking-and-boiling process is specifically designed to make it safe. Never eat it raw.
Where do I buy gosari?
Korean grocery stores sell dried gosari in bags in the dried goods aisle. It looks like dark brown, curled twigs. You can also find it online from Korean food retailers. One small bag makes a huge amount once rehydrated.
The Science of
Gosari Namul (Seasoned Bracken Fern)
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