Chicken Chasseur

Name: Chicken Chasseur
Prep time: 10 min
Cook time: 1 h 20 min
Total time: 1 h 30 min
Cuisine: French, European, Mediterranean
Ingredients: 1 tsp olive oil; 4 chicken legs; salt and pepper; 25g butter; 1 onion, chopped; 3 cloves of garlic, chopped; 200g button mushrooms; 1 carrot, peeled and sliced; 225ml red wine; 2 tbsp tomato purée; 2 sprigs fresh thyme; 500ml chicken stock (or beef stock); 1 tsp cornflour (optional)