Preheat your oven to 200°C/180°C(fan)/400°F/Gas 6.
Mix together 4 tablespoon Butter, 1 sprig Rosemary, 1 sprig Thyme, 2 g Parsley and 1 tablespoon Orange zest.
Put 2 Carrots and 1 Onion on a baking tray. Put 2 kg Chicken on top of the and use your fingers to carefully loosen the skin by sliding it under the skin. Season with 1 pinch Sea salt and ground black pepper.
Spread half of the herb butter under the skin of the chicken and the rest all over the skin. Push 2 Oranges, 1 Lemon and 2 cloves Garlic into the bird's cavity.
Pour 200 ml Chicken stock into the tray.
Roast for 2 hours.
Notes
Use a really good quality butter, as it's one of the main flavours for the rub.
Try to always use fresh herbs if you can as they will have the best flavour. Dried herbs can be used if that's all you have though.
Make sure to put the butter mixture under the skin and in the cavity as well. Don't just put it on top of the skin.
Don't skip putting the chicken on top of the onion and carrot. This is so the air can circulate under the chicken and make sure it is evenly cooked.
If your chicken starts to brown too quickly on top, you can add some foil loosely on top of it.
For some extra flavour, add a splash of white wine to the bottom of the baking tray before it goes in the oven.