Chicken Stir-Fry with Cashews

1 yellow onion, thinly sliced

1 red bell pepper, cut into 1-inch pieces

300 g broccoli, cut into small florets

3 garlic, minced

15 g ginger root, minced

2 scallion, thinly sliced, for garnish

450 g chicken breast, cut into 1-inch pieces

100 g cashews

30 ml vegetable oil, divided

45 ml soy sauce

30 ml oyster sauce

15 ml rice vinegar

15 ml honey

10 ml cornstarch

30 ml water

950 ml jasmine rice, for serving