Preheat and prep: Heat the oven to 450°F (230°C).
Pat the chicken dry with paper towels. Season generously with salt and pepper, including the cavity if using a whole bird. Let it sit while you prep the citrus.
Make the flavor base: Slice one orange and the lemon into rounds.
Zest the lemon and set the zest aside. Smash the garlic cloves. If using an onion, slice it into thick rings and scatter it in a roasting pan to create a base for the chicken.
Mix the rub: In a small bowl, combine olive oil or softened butter with lemon zest, chopped rosemary and thyme, a pinch of salt, black pepper, and the honey if using.
If you like a touch more acidity, squeeze in 1–2 tablespoons of orange or lemon juice.
Season the chicken thoroughly: If using a whole chicken, gently loosen the skin over the breasts and thighs and rub some of the mixture underneath. Rub the rest all over the skin. Stuff the cavity with a few citrus slices, some garlic, and herb sprigs.
For pieces, just coat them well on all sides.
Arrange the pan: Place remaining citrus slices and smashed garlic around the chicken. Add a few sprigs of rosemary and thyme. Pour the broth or wine into the pan if using; it prevents scorching and creates flavorful steam.
Start hot for crisp skin: Roast at 450°F for 15–20 minutes to get the skin going.
This helps build color and texture.
Lower the heat to finish: Reduce the oven to 375°F (190°C) and continue roasting until the thickest part of the thigh reaches 165°F (74°C), juices run clear, and the skin is deep golden. For a 4-pound bird, this typically takes 45–60 more minutes. For bone-in pieces, plan on 30–40 minutes total, depending on size.
Rest before slicing: Transfer the chicken to a board and rest 10–15 minutes.
This keeps the juices in the meat. Meanwhile, tilt the roasting pan and spoon off excess fat if needed.
Make a quick pan sauce (optional): Set the pan over medium heat. Add a splash of broth or wine and scrape up the brown bits.
Simmer 2–3 minutes to thicken slightly. Taste and adjust with a pinch of salt, pepper, or a squeeze of citrus.
Serve: Carve the chicken and spoon those citrusy pan juices over the meat. Serve with roasted vegetables, a green salad, or buttery rice.