Preheat the oven to 425°F. Line two rimmed baking sheets with foil and rub with a little bit of avocado oil to prevent sticking, set one into the oven to preheat and set the other one aside.
Combine all teriyaki ingredients in a large bowl except the gelatin. Add chicken thighs and toss to combine. Let marinate for at least 30 minutes.
Toss the florets with 2 teaspoons avocado oil and some salt to taste. Carefully spread onto the preheated prepared pan - it should sizzle immediately - and return the pan to the oven.
Remove the chicken from the marinade (save the marinade) and set onto the unheated prepared baking sheet. Bake for 20-25 minutes, or until the temperature at the thickest point of a piece of chicken tested is 165ºF.
While the chicken and broccoli cook, bring the reserved marinade to a simmer and cook until the sauce is thickened, about 5-10 minutes. Set aside.
When the chicken is done, brush with half of the sauce. Switch the oven to broil and broil until slightly charred in places. Serve with extra sauce, broccoli on the side, and green onions sprinkled over top.
Notes
Protein:Energy Ratio: 2.27Nutrition made with chicken breast: Calories: 366 cal, Carbs: 11g, Fiber: 3g, Fat: 11g, Protein: 54g, Protein:Energy Ratio: 2.84Nutrition made with chicken thighs and no broccoli: Calories: 299 cal, Carbs: 4g, Fiber: 1g, Fat: 9g, Protein: 47g, Protein:Energy Ratio: 3.92