In old Southern slang, “Mr. Brown” is the dark, smoky outside part of barbecued pork, usually the shoulder. This is the traditional cooking style, perfected by generations of pitmasters to give Mr. Brown his deserved renown.
The night before you plan to barbecue, combine the rub ingredients in a small bowl. Massage the pork well with about half of the rub. Transfer the pork to a plastic bag and refrigerate it overnight.
Before you begin to barbecue, remove the pork from the refrigerator. Pat down the butt with another coating of rub. Let the pork sit at room temperature for about 4