Roast chicken

Name: Roast chicken
Prep time: 10 min
Cook time: 1 h 30 min
Total time: 1 h 40 min
Yield: 4 servings
Cuisine: Global
Ingredients: 1 pinch of Black pepper; 1 pinch of Fine sea salt; 2 Fresh bay leaf; 2 sprigs of Fresh rosemary; 2 sprigs of Fresh thyme; 1 Garlic; 1 Lemon; 1 Medium whole chicken; 20 gr of Unsalted butter; 1 White onion