Grab a small onion or half of a large one and the chicken, plus some cooking twine. Prep your chicken (e.g. pull out the guts, rinse and pat dry, tuck the wing tips back) and peel the onion and cut into two or three chunks. We need the onion to stay as large as possible if it’s gonna survive five hours in a Crock Pot. Stuff the onion in the center cavity of the bird and tie the drumsticks off with twine.
Before dropping the chicken in the pot, make a couple balls from the aluminum foil and put those in first. This creates a platform for the chicken to rest on, letting the juices drip below. Now, it won’t be a soggy mess.
Lay the chicken atop the foil balls and drizzle with a bit of olive oil, rub it over the skin. Now take your spice blend and cover the bird entirely. I like to do this after placing the chicken in the crock so the spices that go overboard end up in the juice and not on my counter.
Wash your hands, pop the lid on, set it to low for 4-5 hours and you’re done! I should warn you that Crock Pots tend to have minds of their own and cook at different rates. This is why most recipes have a range for cook times and generous ones at that. Mine runs hot and tends to cook things faster than recipes specify. You may need to cook yours on high for 4 or 5 hours or low for 6.