Method 1 (which I used)
: Combine all spice blend ingredients including butter. Use this to rub entire chicken with before roasting. Try to separate the skin on the breast and rub some of it between the skin and the breast meat for extra flavor. Stuff the chicken with the halved lemons you zested and squeezed over everything, as well as a few smashed garlic cloves and onion slices, more salt and pepper, and a few sprigs of leftover rosemary
if you have any.