Preheat oven to 425ºF
Prepare a rimmed baking sheet with non-stick aluminum foil and place a wire rack inside the baking sheet. Spray the wire rack with cooking spray.
In a small bowl, combine together the butter, garlic, herbs, lemon zest, and pepper. You may need to use a fork to incorporate the herbs into the butter.
Loosen the skin from each thigh, without detaching it from the chicken.
Spread the butter mixture under the skin, using your hands. Replace the skin.
Brush the exterior of the thighs with 1 Tablespoon of olive oil.
Sprinkle desired salt and pepper on top of the chicken. Place the thighs on the wire rack with the skin side UP.
Bake in the oven for 50 minutes or until an inserted meat thermometer indicates 165º.
Remove from oven and allow chicken to rest for 10 minutes before serving.