1/2 cup chicken stock
1/4 cup oyster sauce
1 tablespoon rice wine vinegar
1 tablespoon freshly grated ginger
3 cloves garlic (minced)
1 teaspoon Sriracha (optional)
1 pound boneless (skinless chicken thighs, cut into bite-size pieces)
Kosher salt and freshly ground black pepper (to taste)
2 tablespoons cornstarch
1 tablespoon canola oil
1 tablespoon sesame oil
3 cups broccoli florets
1/2 teaspoon toasted sesame seeds