Marinate the fish by combining 3 tbsp. sherry cooking wine, salt, and 1 tsp. sesame oil in a bowl. Mix well. Add the fish cubes and marinate for 30 minutes.
Soak the salted black beans in warm water for 15 minutes. Drain and set aside. We will use this later.
Start to fry the fish by heating the oil in a cooking pot. Remove the fish from the marinade. Roll the fish cubes on a bowl with 3 tablespoons cornstarch. Make sure that the fish is fully coated. Fry the coated fish until the color turns light brown. Remove from the cooking pot and place in a plate. Set aside.
Make the sauce by combining the chicken broth, ½ tsp sesame oil, 2 tbsp. sherry cooking wine, ground black pepper, ½ tbsp. cornstarch, and sugar. Mix well.
On a separate frying pan, heat 3 tablespoons of cooking oil (re-use the oil that fried the fish). Saute garlic, ginger, and salted black beans for 30 to 60 seconds.
Put-in the fried fish cubes. Stir.
Pour-in the sauce mixture. Stir and continue to cook until the sauce starts to thicken.
Sprinkle some green onions.
Transfer to a serving plate. Serve.
Share and enjoy!