Do I have to use fresh herbs?
Fresh is best here, but you can absolutely use dried in a pinch. Swap to 1 teaspoon dried for every 1 tablespoon fresh. Keep dried herbs in the paste, then finish with something fresh if you have it, even just parsley.
How do I know the chicken is done?
Use a thermometer. Aim for 165°F in the thickest part of the breast and 175°F to 185°F in the thigh for the juiciest dark meat. Let it rest 10 minutes so the juices settle down.
My skin never gets crispy. What am I doing wrong?
Usually it is moisture. Pat the chicken very dry, salt it, and do not crowd it in a tight dish. A rimmed sheet pan or roasting pan with airflow around the bird helps a lot.
Can I make this with thighs only?
Yes. Use bone-in, skin-on thighs. Roast at 425°F for about 30 to 40 minutes depending on size, then make the same pan sauce (you might need a splash more broth).
What if I do not have a roasting rack?
No problem. Make a quick “rack” with thick slices of onion and lemon halves. The chicken sits on top, drippings fall underneath, and you get bonus flavor.