The recipe uses Chinese Shaoxing rice wine made by fermenting glutinous rice. You can buy it from specialist suppliers and large supermarkets. I keep a bottle in my cupboard because I love cooking Chinese food. If you don’t want to buy a bottle you can substitute dry sherry for the rice wine.
Heat a large pan of water until boiling and add five grammes of salt. Add the asparagus and baby corn and boil for one minute. Strain immediately and plunge into ice-cold water until thoroughly chilled. Drain again and set aside.
Heat a splash of the vegetable oil in a wok and add the garlic and ginger. Stir for one minute and add the onion and pepper. Add a couple of tablespoons of freshly boiled water and cook stirring constantly for a couple of minutes until the onion starts to soften.
Add the water chestnuts, asparagus, baby corn and a drop more water and cook for two more minutes then add the Shaoxing wine and the oyster sauce and turn the heat down to a gentle simmer.
Heat the remaining oil in a heavy-bottomed frying pan over a high heat and then sauté the scallops for a minute until caramelised and brown. Season well with sea salt and freshly ground black pepper then flip over and cook the other side.
Add the scallops and sesame oil to the vegetables and oyster sauce and toss together. Correct seasoning with more black pepper if required and serve.