Stir in the oyster sauce and cook for 2–3 minutes. Add about half of the reserved broccoli cooking water and crumble in half of the chicken stock cube. Bring to a simmer and then add the sesame oil.
In this traditional Tuscan version of chicken and broccoli pasta, broccoli steams in stock and olive oil until it emulsifies into a glorious sauce. Each serving provides 650 kcal, 46g protein ...
Stir and continue to cook, stirring occasionally, until golden brown on all sides ... Cook, stirring, until sauce is thickened and chicken and broccoli are well coated, 1 to 2 minutes more.