To make the blueberry bbq sauce: add all ingredients to a saucepan over medium-low heat. Bring to a simmer and allow it to cook for 30 minutes, stirring and mashing often. After the 30 minutes, use a potato masher to smooth out the sauce. If you want it completely smooth, puree it in a blender or food processor.
Preheat oven to 400 degrees F. Line a rimmed baking sheet with foil and place a rack on top of the baking sheet. Rub rack with coconut oil so the wings don't stick.
Dry the chicken wings thoroughly on paper towels. Add to a large bowl and rub with a tablespoon of coconut oil. Place wings on prepared rack. Bake for 20 minutes, flip and bake another 20 to 25 minutes. Remove wings from oven and toss with the sauce. Turn oven to the broiler setting. Place the wings back on the rack and broil a few minutes per side, until browned. Watch closely so they don't burn.