Fill a large pan with water and add a dash of salt to it. Place the pan over high heat and then bring to a boil. In the meantime trim the Brussel sprouts. Remove any brown spots or wrinkled leaves. Rinse the cleaned sprouts under cold running tap water and drain. Then add the sprouts to the pan once the water is boiling.

Blanch the sprouts for 3 to 4 minutes. Take the pan off the heat and drain the sprouts. Immediately refresh them in a bowl filled with cold tap water. Keep them there for 2 minutes and drain again. Then add a splash of olive oil to a pan and add the sliced onion and garlic.

Place the pan over medium heat and cook the onion for 2 minutes. Add the soy sauce, fish sauce and oyster sauce. Season with a little pepper.

Stir well. Then add the blanched and drained sprouts.

Stir well again. Turn the heat lower and put a lid on the pan. Let the sprouts warm through for 3 minutes. Add the freshly grated ginger (optional).