01 - Preheat the oven to 180°C (350°F).
02 - In a small bowl, mix together the softened butter, tarragon, thyme, salt, and pepper.
03 - Pat the chicken dry with paper towels and carefully loosen the skin over the breast and thighs.
04 - Rub the herb butter mixture under the skin and all over the chicken.
05 - Place the quartered onions, carrots, and minced garlic in the bottom of a roasting pan.
06 - Place the chicken on top of the vegetables and drizzle with olive oil.
07 - Roast in the preheated oven for about 1 hour and 30 minutes, or until the internal temperature reaches 75°C (165°F).
08 - Let the chicken rest for 10-15 minutes before carving.