In an air fryer, how long should a duck leg be cooked? A sweet and spicy orange sauce tops this quick and delectable air fryer duck leg recipe. Duck legs can be roasted in an air fryer and are low carb, keto, and gluten-free. Make your roast duck legs for a fraction of the cost of a fine restaurant meal. Duck drumsticks are used instead of duck legs in this dish, and they’ll cook up extra soft and juicy because they’re bone-in and skin-on.