Here is a good place to start for a butt rub. Add as you wish whatever you wish, keep notes and you will end up with a signature rub to be proud of.
1/2 cup non-iodized salt
1/4 cup fresh ground black pepper
1/4 cup paprika
2 T granulated onion
2 T granulated garlic
2 T chili powder
1 T cayenne pepper



