- Preheat grill to medium heat. Combine ingredients for teriyaki butter in a small bowl and use a fork to mix until teriyaki takumi is well mixed into butter.
- Place a piece of wax paper in work surface and transfer butter on center of wax paper. Roll wax paper snugly around butter and twist ends to secure. Freeze while grilling corn to firm up the butter.
- Brush corn with olive oil and place directly on grill. Grill for 12-15 minutes, turning corn every 4-5 minutes for even grilling. Remove from grill and season corn with salt. Unwrap one end of butter and spread onto hot corn. Serve right away with additional cilantro. Corn can also be sliced off the cob and served in a bowl.