Dan-Dan Noodles

INGREDIENTS

• 3 tablespoons soy sauce
• 1 1/4 cups low-sodium chicken broth or stock
• 1 clove garlic, minced
• 3 tablespoons vegetable oil
• 1/2 cup sesame seeds, toasted
• 2 teaspoons balsamic vinegar
• 9 ounces dried Chinese egg noodles
• 4 tablespoons toasted sesame oil, plus more for serving
• 1 tablespoon plus 1/2 teaspoon sugar
• 2 to 4 teaspoons Chinese chili oil, plus more for serving
• 1 medium head bok choy, sliced crosswise
• 1 tablespoon minced peeled ginger
• 2 half-sour dill pickles
• Kosher salt
• 8 ounces ground pork
• 4 scallions, finely chopped