Make the Chili Oil: Combine chili flakes, sesame seeds, garlic, ginger, sugar, salt, and a cinnamon stick in a heat-safe bowl. Heat the neutral oil in a small pan until hot (test by adding a small piece of garlic—if it sizzles, it's ready). Carefully pour the hot oil over the chili mixture and stir. Set aside to infuse. Skip this step if you already have chili oil on hand!
In a pot, heat a small drizzle of neutral oil over medium heat. Add the scallion whites and ginger, then sauté for 2-3 minutes until fragrant. Add the garlic and cook for 1 minute more.
Pour in the Shaoxing wine and simmer for 1-2 minutes, then add the chicken broth and a dash of soy sauce. Simmer for 10 minutes. I like to strain out the aromatics at this stage for a super clear broth, then return it to the pot to stay warm.
While the broth simmers, cook the frozen dumplings in a separate pot of boiling water or steam them until cooked through. Transfer to serving bowls.
Using the same pot, quickly blanch or steam the bok choy until bright green and tender. Add it to the bowls with the dumplings.
Ladle the hot broth over the dumplings and bok choy. Finish with chili oil, scallion greens, and a light drizzle of sesame oil. Enjoy!