Cover unshucked corn with water and soak for 30 minutes, weighing it down so that it is completely submerged. This will help the husk not burn. Sometimes I add 1/8 tsp. cumin to the spice mix for change.
After corn has soaked,peel back husks, (but do not remove) and clean off silks. Peal off one or two single husks to make ties with later.
In small bowl add salt and all the spices and mix. Smear butter on corn then sprinkle on the spice mix.(You may have leftover spice mix) Take the husks you set aside and cut (4) 1/4 inch strips lengthwise. Use these to secure husks together at the top of ear.
Grill on med. hi for 20 minutes, with lid closed, turning 1/4 turn every 5 minutes. Peel back husks and enjoy!