Sweet Potato Noodles

Origin

Sweet potato noodles, or dangmyeon, have been part of Korean cooking since the Joseon Dynasty (1392–1897). Made from sweet potato starch rather than the vegetable flesh, they are essential to japchae and many soups. Their gluten-free chew has also won them a global audience as an alternative to wheat noodles.

How to make them

Commercial dangmyeon is extruded from sweet potato starch and water, then dried. Home cooks focus on soaking and boiling.

1. 01

   Sweet potatoes are processed to extract pure starch.

2. 02

   Starch is mixed with water and extruded into boiling water.

3. 03

   Noodles are briefly cooked, cooled, and dried for packaging.

4. 04

   To cook: soak dried noodles in warm water 15–20 minutes.

5. 05

   Boil 3–5 minutes until chewy-tender, rinse in cold water, and drain well.

Storage

Dried noodles keep up to 2 years airtight in a cool, dry place. Cooked noodles refrigerate 3–4 days and reheat with a quick hot-water dip or stir-fry. Freezing up to 2 months works, though texture softens slightly.

Popular dishes

• Japchae

  Stir-fried dangmyeon with vegetables, beef, and sesame-soy sauce.

• Bibim Dangmyeon

  Spicy cold noodle salad with gochujang and vegetables.

• Sweet Potato Noodle Soup

  Clear broth with chewy noodles, beef, or seafood.

• Gluten-Free Pad Thai

  Thai-inspired stir-fry using dangmyeon instead of rice noodles.

• Vegetable Stir-Fry

  Simple wok meal with mixed vegetables and protein.