Chinese Steamed Spare Ribs with Black Beans

Name: Chinese Steamed Spare Ribs with Black Beans
Prep time: 10 min
Cook time: 10 min
Total time: 20 min
Cuisine: Asian, Chinese
Ingredients: 1½ lbs pork side ribs ((spare ribs)); 1½ tablespoons fermented black beans; 2 cloves garlic ((minced very finely, approx. 1 tablespoon)); 1 1/2 tablespoon soy sauce; 1/2 teaspoon dark soy ((optional)); 1 teaspoon cooking wine ((Shaoxing, rice cooking wine or dry sherry)); 1/2 teaspoon sesame oil; ½ teaspoon salt; 2 teaspoons sugar; 1 tablespoon water; 2 teaspoons potato starch ((or cornstarch)); 1 tablespoon oil ((to drizzle right before steaming)); 1 stalk green onion ((finely chopped)); 1 birdseye chili ((optional, finely sliced)); toasted sesame seeds ((optional))