Cut the chicken into 1 inch cubes and add to a bowl. Over the chicken add soy sauce, rice vinegar and cornstarch. Mix well and set to the side.
Wash and chop your veggies.
Heat a large skillet or wok over medium-high heat and add the olive oil. When the oil is hot, add in the chicken so the bottom of the pan is covered but not overcrowded. You may have to cook it in two batches.
When the chicken is browned on all sides and cooked through, remove it to a plate repeat with the remaining chicken.
Measure out the sauce ingredients, mix them and set aside.
Add 1 tablespoon of olive oil to the skillet or wok.
Add the carrots, onions, mushrooms, peppers and baby corn and cook. As they're cooking, add the broccoli florets and snow peas to the skillet and sauté for just a few moments. Make sure the veggies are vibrant in colour and still have a bite to them.
Add the chicken (with the juices on the plate) back in and mix. Add the sauce ingredients to the pan and mix them well until you get a nice, velvety sauce that thickens slightly.
Serve over rice or noodles.