Chicken Cubes in Black Bean Sauce

This is another dish that I'm trying to perfect. A popular dish at most Chinese restaurants, it packs a punch and is a wholesome all-in-one dish.

300g chicken breast, cubed
1/2 tbsp sliced garlic, 5 slices ginger
2 tbsp fermented black bean, soaked, chopped ( or use black bean paste as alternative)
1 green capsicum, sliced
1 onion, sliced; 1 red chilli, sliced

Marinade:
1/2 tsp salt, 1/4 tsp pepper
1 tsp light soya sauce
1 tbsp corn flour

Seasoning:
1/2 tbsp oyster sauce
1 tsp light soya sauce
1 tsp dark soya sauce
1 tsp sugar, 1/2 tsp sesame oil
1 tsp shaoxing wine
1 tsp cornflour, mixed with 2 tbsp water, for thickening

1. Combine chicken with marinade and season for 30 minutes.
2. Heat up oil and saute garlic and ginger till fragrant. Add in black bean and stir fry till fragrant.
3. Next, add the following in order: chilli, onion, green capsicum. Then, add the chicken and fry together with other ingredients till almost cooked.
4. Finally, add seasoning and cook till sauce thickens.

*you may use chicken thigh or thinly sliced pork belly to substitute chicken breast.