Heat 1/4 inch of ghee or avocado oil in a large skillet over medium-high heat until hot but not smoking. Add half the chicken and cook until golden on one side, about 3 minutes. Flip and cook until golden on the other side, another 3 minutes. Transfer to a paper towel-lined plate and repeat with the remaining chicken, adding more ghee or oil if needed. Serve with lemon wedges.