1. Preheat the oven to 220°C fan-forced.
2. Prepare the chicken by patting dry with a paper towel and untie legs so you can easily stuff herbs inside.
3. Into a small mixing bowl place 4 tablespoons of EVOO (or melted ghee), lemon juice, zest from 1 lemon, minced garlic (half of the garlic), rosemary leaves and thyme leaves and mix until well combined.
4. Stuff the chicken with the leftover lemon, rosemary and thyme stems and tie off the legs.
5. Place the onion slices and remaining 4 whole garlic cloves on the bottom of a dutch oven and drizzle with EVOO.
6. Lay the chicken on top of the onion mix and then brush the chicken with the EVOO and herb mixture.
7. Place the lid on the dutch oven and place into the oven for 1 hour and 15 minutes, remove the lid and continue to cook in the oven for an additional 25-30 minutes until golden and crispy. The chicken should be completely cooked through.