For the Soup:

• 1 tablespoon sesame oil
• 1 small onion, diced
• 2 garlic cloves, minced
• 1 teaspoon ginger, grated
• 6 cups chicken or vegetable broth
• 12 frozen potstickers or dumplings
• 1 cup sliced mushrooms (shiitake or button)
• 2 cups baby bok choy, chopped
• 2 tablespoons soy sauce
• 1 teaspoon rice vinegar
• 1/2 teaspoon crushed red pepper flakes (optional)

For Garnish:

• Sliced green onions
• Sesame seeds
• Fresh cilantro