Place chicken in Crock Pot, breast side down.
Pour beer over chicken.
Sprinkle spices on bird.
Cover and cook on high 4-5 hours, or on low 7-8 hours.
Remove chicken carefully from slow cooker to a platter. Be careful, it will be very tender, and will fall off the bone.
To make the gravy, skim the dripping off, put them in a saucepan, and sprinkle about a tablespoon of flour into it. Whisk it until combined, and add in either chicken broth or water, about two cups. Continue stirring, and cook over medium high heat until it begins to boil. Turn the heat down to medium low, and keep stirring it for a few minutes, or until the gravy is to your desired consistency.
Sometimes, instead of adding the flour, I cheat and use a gravy packet to thicken it up and add extra flavor.