This is the original recipe from his cookbook. Today's version doesn't have MSG.
Recipe By : Tony Chachere
26 ounces free flowing salt
1 1/2 ounces black pepper ground
2 ounces red pepper ground
1 ounce garlic powder pure
1 ounce chili powder
1 ounce Monosodium glutamate (Accent)
Mix well and use like salt. When it’s salty enough, it’s seasoned to perfection.