Prepare the chicken - clean the chicken thoroughly and cut into small pieces. Then marinate with salt. Place it in the fridge for 2 hours. You need to remove the chicken from the fridge about 30 minutes before cooking to let it come back to room temperature.
Peel the skin and grate the ginger into a fine paste. Place the ginger paste and oyster sauce into a heat proof bowl. Heat up the cooking oil. Pour the hot oil onto the ginger paste and oyster sauce. Mix well. Reserve half of the ginger sauce as a dipping sauce and spread the remaining half over the chicken.
Place the chicken onto the heatproof bowl. Do not stack them on top of each other. Spread the remaining half of the ginger sauce over the chicken. Once the water in the wok is boiling, place the chicken on the steam rack. Steam on high heat for 15–20 minutes. Once done, garnish with some spring onions.