Glaze:
1. Combine syrup, chipotle, butter and garlic in a small saucepan and simmer over medium heat for 6-8 minutes.
Grilling:
2. Preheat grill to low. Grill corn directly on grates for 10 to 15 minutes, turning and brushing with maple chipotle glaze several times and frequently. Sprinkle corn with salt and serve.