1. Preheat barbecue to medium-high heat. Coat ears lightly with canola cooking spray.
  2. Grill corn until tender and charred in spots (about 10 minutes).
  3. Add the cilantro and whipped butter to a small cup and stir with fork to blend well.
  4. When corn is ready, remove the ears from grill and spread a teaspoon of cilantro butter all over the outside of each ear.
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