Preheat the oven to 200°C.
Mix herbs, garlic, and seasoning in a bowl and push under the chicken skin.
Fry chicken in an ovenproof pan with oil for 4 minutes.
Transfer the pan to the oven and roast for 10 minutes until cooked through.
Boil potatoes in salted water for 10 minutes until soft.
Drain potatoes and mash with onion, butter, chives, seasoning, and cream.
Fry cherry tomatoes in a pan with oil for 5 minutes.
Add red wine and balsamic vinegar to the pan and simmer for 1 minute.
Plat the mashed potatoes, top with chicken, and pour sauce over.
Serve the meal with steamed broccoli.