French Onion Soup

Name: French Onion Soup
Prep time: 20 min
Cook time: 1 h 30 min
Total time: 1 h 50 min
Cuisine: French
Ingredients: 100 g / 3.5oz unsalted butter; 1.25 kg / 2.5 lb brown / yellow onions (, peeled, halved, thinly sliced top to bottom (Note 1)); 3/4 cup (185ml) dry white wine (, optional (Note 2)); 2 tbsp flour (, plain / all purpose); 1.5 litres / 6 cups / 1.5 quarts good quality beef broth./stock OR chicken (, low sodium/salt reduced (Note 3)); 2 dried bay leaves ((or 3 fresh) (optional)); 3 sprigs fresh thyme ((optional)); Salt and pepper; 6 - 8 slices French baguette (or other softish bread (Note 4)); 100 g / 3.5 oz gruyere (or mozzarella cheese, or other melting cheese of choice); Fresh parsley or thyme leaves (, for garnish (optional))

Instructions

Prep:20minCook:1h 30min

Recipe video above. One of the most epic soups of the world does take time to make but it's so worth it! The deeply caramelised onions make an incredible flavour base for the broth. And that cheesy toast is a must! See recipe notes for SLOW COOKER Caramelised Onions.

Updated at: Sat, 23 May 2026 22:34:53 GMT