This rub also works wonders for fish, chicken, pork -- even vegetables on the grill. It easily doubles, and it stores, tightly covered, up to six months.
In a small bowl stir together paprika, black pepper, salt, chili powder, cumin, brown sugar, granulated sugar, and cayenne pepper. Transfer to a small airtight container or bag. Store at room temperature up to 6 months. Makes about 2 cups of rub.