Easy French Onion Soup Recipe

Recipe Video Above. Soul warming and perfect for colder weather, this Easy French Onion Soup recipe requires simple ingredients but produces such a delicious result. Try it and it'll sure become your favorite easy winter warmer!
Course Soup
Cuisine French
Keyword French recipes, soup recipes
Prep Time 10 minutes
Cook Time 1 hour 20 minutes
Total Time 1 hour 30 minutes
Servings 4
Calories 615kcal
Author Iryna


  • 2 lb yellow onion halved and thinly sliced
  • 6 tbsp butter
  • 1/2 tsp sugar
  • 1 tsp salt
  • 1/4 tsp pepper
  • 4 tbsp flour
  • 1 tsp fresh thyme leaves minced
  • 4 c beef, chicken or vegetable broth low sodium
  • 8 slices white baguette
  • 3/4 c Gruyere cheese grated
  • 3/4 c Provolone cheese grated


  • Melt butter in a large Dutch oven.
  • Add sliced onion, reduce the heat to medium low and cook stirring occasionally until tender and caramelised. Don't let the onions stick to the bottom of the pot. They should be rich brown colour with distinctive smell. It will take about 50 minutes. 
  • Whisk in flour, sugar, salt, pepper and thyme and simmer stirring constantly for 5-7 minutes.
  • Add broth and simmer with a lid on for 25 minutes.
  • Preheat the broiler.
  • Place 4 ramekins into a rimmed baking sheet and divide soup among ramekins.
  • Top each ramekin with a few slices of baguette. Generously sprinkle with Gruyere and Provolone cheese. Broil for a few minutes until cheese melts and starts to brown.
  • Serve immediately followed by readers's favorite Mustard Chicken or 30 minute Risotto Puttanesca.



--- Nutritional Information Should Be Considered An Estimate ---

Calories: 615kcal | Carbohydrates: 55.9g | Protein: 25.2g | Fat: 32.6g | Saturated Fat: 19.4g | Cholesterol: 85mg | Sodium: 1762mg | Potassium: 605mg | Fiber: 6.2g | Sugar: 11.1g | Calcium: 360mg | Iron: 1.8mg