Preheat oven to 400 degrees
Toss quartered potatoes with olive oil, and season with salt and pepper, and pour onto one half of a sheet pan sprayed with cooking oil.
Put sheet pan in preheated oven, and roast for 10 minutes.
Meanwhile, mix "sauce" ingredients together in a bowl.
After the 10 minutes are up, remove potatoes from oven, and carefully place chicken on the other half of the pan
Spoon half the sauce over the chicken
Roast for 15-20 minutes, at 400 then turn oven up to broil, and broil 5-10 minutes until potatoes are tender chicken reaches internal temp of 165 degrees.
Meanwhile, heat remaining half the sauce over medium-high heat, and cook until reduced by half
Remove chicken and potatoes from oven, spoon remaining reduced sauce over the chicken, garnish with fresh parsley and enjoy!