Heat the vegetable oil in a large pot over medium heat.
Add the diced onion and sauté until translucent, about 5 minutes.
Stir in the minced garlic and grated ginger, cooking for 1-2 minutes until fragrant.
Pour in the chicken or vegetable broth, then add soy sauce and chili paste.
Bring the mixture to a gentle simmer, then add the frozen dumplings.
Once the dumplings are heated through, add chopped bok choy and simmer for another 3-5 minutes.
Taste the soup and adjust seasoning with more soy sauce or chili paste if needed.
Ladle the soup into bowls and garnish with green onions and cilantro.