Preheat the oven to 450°F. Line a roasting pan, casserole dish, or oven-safe skillet with parchment paper, or place a rack over a sheet pan.
Pat the chicken completely dry with paper towels—this is key for crispy skin. Tuck the wing tips under.
In a small bowl, whisk together ghee, olive oil, salt, pepper, garlic powder, paprika, orange zest, lemon zest, maple syrup, and half of the citrus juice. Rub the mixture all over the chicken, getting under the skin where possible.
Stuff the cavity with the garlic cloves, onion, and herbs. Tie the legs together with kitchen twine if you have it.
Place the chicken breast-side up on the rack or on top of a few slices of onion and citrus to elevate it slightly. Roast at 450°F for 15 minutes, then reduce the oven to 400°F and continue roasting for 60–65 minutes, or until the thickest part of the thigh reaches 165°F.
Halfway through cooking, spoon pan juices over the chicken to baste.
In the last 10 minutes, stir the remaining citrus juice with 1 teaspoon maple syrup and brush it over the skin for a glossy, golden finish.
Let rest for 15 minutes before carving so the juices can redistribute.