French Onion Soup

French Onion Soup
  • Author: Anonymous

This classic French onion soup recipe features deeply caramelized onions simmered in a flavorful beef broth, topped with crispy French bread and a generous amount of melted Gruyère cheese. Enjoy this cozy and comforting dish that is perfect for chilly evenings or for impressing guests with its rich and savory flavors.

— Constant Cookbook

Ingredients

  • 50g butter
  • 1 tbsp olive oil
  • 1kg onions , halved and thinly sliced
  • 1 tsp sugar
  • 4 garlic cloves , thinly sliced
  • 2 tbsp plain flour
  • 250ml dry white wine
  • 1.3l hot strongly-flavoured beef stock
  • 4-8 slices French bread (depending on size)
  • 140g Gruyère , finely grated

Instructions

  • Melt the butter with the olive oil in a large heavy-based pan. Add the onions and fry with the lid on for 10 mins until soft.
  • Sprinkle in the sugar and cook for 20 mins more, stirring frequently, until caramelised. The onions should be really golden, full of flavour and soft when pinched between your fingers. Take care towards the end to ensure that they don’t burn.
  • Add the garlic cloves for the final few minutes of the onions’ cooking time, then sprinkle in the plain flour and stir well.
  • Increase the heat and keep stirring as you gradually add the wine, followed by the beef stock. Cover and simmer for 15-20 mins.
  • To serve, turn on the grill, and toast the bread. Ladle the soup into heatproof bowls.
  • Put a slice or two of toast on top of the bowls of soup, and pile on the gruyère. Grill until melted. Alternatively, you can cook the toasts under the grill, then add them to the soup to serve.

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Cook Time

55M

Prep Time

PT15M

Yield

Serves 4

Nutrition

  • Calories: 618 calories
  • Fat Content: 27 grams fat
  • Saturated Fat Content: 14 grams saturated fat
  • Carbohydrate Content: 59 grams carbohydrates
  • Sugar Content: 17 grams sugar
  • Fiber Content: 9 grams fiber
  • Protein Content: 26 grams protein
  • Sodium Content: 2.6 milligram of sodium