Preheat oven to 250 degrees. Line a baking sheet with foil. Place a wire rack onto the baking sheet. Arrange prepped wings in a single-layer onto the rack. Roast wings in pre-heated oven for 30 minutes.
After 30 minutes, leaving the wings in the oven, raise the oven temperature to 500 degrees. Continue roasting for 40 more minutes.
Remove wings from the oven. Let rest for 5 minutes before saucing.
In a large bowl, toss wings until evenly coated in Orange Harissa Sauce (see instructions below). Serve alongside Tahini Ranch Dressing (see instructions below).