Heat oven to 200C*. Mix together grated ginger, crushed garlic, five spice, brown sugar and the orange zest. Season the chicken, inside and out with salt and pepper, then rub the ginger mix all over.
Set a wide, heavy pot over medium-high heat and add 2 tablespoons canola oil. Add chicken legs, skin-side down, and sear until skin is golden brown, about 5 minutes. If necessary, sear in batches ...