Name: French Onion Soup au Gratin with Gruyère
Prep time: 20 min
Cook time: 1 h 15 min
Total time: 1 h 35 min
Yield: 4 servings
Cuisine: Französische Küche
Ingredients: 1 kg yellow onions; 1.2 l liquid beef broth; 100 ml dry white wine; 1 pc. leek (green part only); 2 stems flat-leaf parsley; 400 g Gruyère (4–6 slices and the rest grated); 80 g unsalted butter; 2 tbsp plain wheat flour Type 480; 1 baguette (8–12 slices); 1 dried bay leaf; 2 sprigs fresh thyme; 1 tsp freshly ground black pepper; ½ tsp fine table salt