• 200 grams sweet potato noodles (dangmyeon), dry
• 2 teaspoons sesame oil
• 1 tablespoon neutral oil such as vegetable or grapeseed oil
• 2 cloves garlic (minced)
• 1 medium onion (thinly sliced into half-moons)
• 6 shiitake mushrooms (sliced into strips)
• 1/2 red bell pepper (sliced into thin strips)
• 1 medium carrot (sliced into thin strips)
• 1/2 pound baby spinach (roughly chopped)
• 3 stalks scallions (finely chopped on the bias)
• 1 tablespoon sesame seeds

Japchae sauce

• 3 tablespoons soy sauce
• 1 tablespoon dark soy sauce
• 2 teaspoons sugar
• 1 tablespoon sesame oil