Toast the bread slices and cut into medium-sized chunks.Â
Pour the soup in the Gratin bowls. Place the toasted bread chunks on top and sprinkle over the grated cheese.Â
Grill in the oven at 200°C for a few minutes.Â
Serve immediately.Â
Tip: You can also deglaze the onions with white wine before adding the chicken broth. And for more flavor, add a bouquet garnish to the chicken broth.Â