Korean Japchae Glass Noodles Recipe — Stir-Fried Sweet Potato Noodles

I enjoy spicy food, so Korean cuisine is a favorite of mine. When my family eats out, though, we always order Japchae noodles because someone in the group can’t handle heat. Japchae is simple to prepare at home. These glass noodles are made from sweet potato starch rather than wheat, giving them a firmer, chewier texture and more al dente bite. They’re also forgiving when cooked, which makes them easy to work with in stir-fries.

Tips

Noodles

Japchae noodles come both very long and pre-cut. The long strands can be tricky to manage at the table, so I prefer brands that are cut into shorter lengths resembling spaghetti. Cut noodles are easier to eat and mix more evenly with the other ingredients, and they’re less likely to clump together.

Sauce

The sauce defines the dish. Traditional Korean japchae leans toward a slightly sweet profile with a pronounced sesame oil aroma. A useful trick: mix half the sauce into the noodles right after cooking so they absorb flavor, then add the remainder when combining with the vegetables. This step makes a noticeable difference in taste.

Japchae noodles marinating in sauce after cooking, before being mixed into the vegetables

Fixins

Traditional japchae often includes seasoned beef, but you can substitute any protein or make it vegetarian. Cut vegetables into uniform julienne strips for consistent cooking and an attractive presentation. Common vegetables in japchae include onion, mushrooms and spinach.

Uniform julienned vegetables for japchae

Stir-fry vegetables before adding cooked japchae noodles

Korean japchae noodles