This is my go-to Pork Rub! I found this posted on the uglybrothers.net site

Also known as Butt Rub, this should be generously rubbed all over your pork butt or shoulder a minimum of a few hours or, preferably, the day before your pig meat is smoked.

Ingredient s

2 TBS     Kosher Salt    DO NOT use iodized salt!
4 TBS     Dark Brown Sugar    
2 TBS     Cumin Seed    ground
2 TBS     Chile Powder    New Mexican is best
2 TBS     Black Pepper    fresh cracked
1 TBS     Cayenne Pepper     
4 TBS     Hungarian Paprika     
2 TBS     Ground Sage

Makes about one cup, enough for a good pork butt.