Chicken chasseur

Name: Chicken chasseur
Prep time: 10 min
Cook time: 1 h 50 min
Total time: 2 h
Cuisine: French, Mediterranean, European
Ingredients: 25 g gluten free cornflour (see Tips); 185 g water; 1 garlic clove; 30 g olive oil; 100 g eschalots, cut into halves; 200 g button mushrooms, cut into halves (see Tips); 2 - 3 sprigs fresh thyme, leaves only, plus extra for garnishing; 100 g dry white wine; 30 g Chicken stock paste (see Tips); 100 g tomato paste; 1 pinch ground black pepper; 800 g skinless, boneless chicken thighs; salt, to season