Heat the wok until very hot then add 2 tbsp of vegetable oil and 2 tbsp sesame oil. Add the chopped garlic, carrots, onions, peppers and celery. Stir fry for 2 minutes, stirring constantly. Add the broccoli, mushrooms and bean sprouts. Add a splash of soya sauce. Remove the vegetable from the wok and set aside.
Add another tablespoon of the vegetable and sesame oil to the wok. Add the chicken and stir fry for 5 minutes. Cut into a thick chunk of chicken to check that it is cooked through, with no pink showing.
Return the vegetables to the pan and add the remaining soya sauce and oyster sauce. Cook for an additional minute stirring constantly. Serve hot garnished with chillies.
For top tips on protecting you and your family when preparing raw meat and poultry, visit Food Safety in the Home and view the full Food safety at home video.