Stir together the sugar, salt, monosodium glutamate, oregano, basil, lemon pepper, garlic powder, onion powder, paprika, chili powder, mustard, white pepper, and cayenne pepper in a bowl until evenly combined. Store in an airtight container.
To use, apply generously (about 1 tablespoon per serving), and rub into chicken or pork. Allow to stand for 30 minutes prior to cooking.