Wash the 500g grass carp or your choice of fish thoroughly under running water.

Pat dry the fish with paper towels to make it easier to cut without slipping.

Cut the fish into small pieces at about 1 inch thick.

Prepare the marinade by adding 1 tbsp minced garlic in a heat-resistant bowl.

Then, pour 1 tbsp hot oil over the minced garlic. The oil should be sizzling hot to gently cook the garlic. There should be bubbles forming once the oil is poured over the garlic.

Next, add 2 tbsp black bean sauce.

Stir the sauce well.

Afterward, arrange your fish on a serving plate.

Pour the marinade on the fish filets and spread evenly. The marinade should coat all sides of the fish.

Marinate for 20 minutes. You can marinate longer if you prefer for more absorption.

After marinating the fish, prepare a steamer with water and boil the water.

When the water boils in the steamer, place the serving plate with the fish on the steamer rack.

Steam for 8 minutes.

After 8 minutes, take out the plate with fish. Be careful and use oven mitts or tongs to remove the plate since it will be piping hot.

Then, top the fish with chopped green onions.

Lastly, drizzle 1 tablespoon of hot oil and serve while hot and fresh.