Ingredients 1/4 cup low-sodium soy sauce 1 tablespoon light-brown sugar 2 cloves garlic, grated on a Microplane zester (1 teaspoon) Kosher salt 8 ounces Korean sweet potato noodles (dangmyeon) 2 teaspoons toasted sesame oil 3 tablespoons neutral oil, such as safflower 8 scallions, white and light-green parts cut into 1 1/2-inch lengths (about 2/3 cup), and dark-green tops thinly sliced for serving (1/2 cup) 8 ounces shiitake mushrooms, stems removed, sliced 1/4 inch thick (about 3 cups) 2 cups shredded carrots (from 4 carrots) 1 bunch spinach, thick stems removed (6 packed cups) 2 tablespoons toasted sesame seeds Preparation In a medium bowl, stir together soy sauce, brown sugar, garlic, and 1/2 teaspoon salt until sugar dissolves; set aside....