Mix all the ingredients for the marinade, and place in the chicken wings. Put this in the fridge for a few hours, or overnight. When ready to use, take the wings out and pat them dry.

For the sauce, heat the oil in a pot, and add the onion and garlic. Saute for a few minutes. Then add the chipotle puree. Finally add the other spices, maple syrup, tomato paste and half the water. Simmer for 10 minutes, it should be smooth and glossy but also coat the back of a spoon. Add a bit more water as needed. When you think you have the right consistency, take it off the heat. Before using, add the lime juice.

Pre-heat the barbecue, and place the wings on. Slowly grill them, until they are cooked to your liking. Just before taking them off, dunk them in the sauce and place them on a cooler part of your grill before serving.

Top with any leftover chopped red onion and some chopped cilantro. For good measure, grill half a lime and squeeze the juice over the fresh wings before serving.