French Onion Soup With Gruyère Croûtons

French Onion Soup With Gruyère Croûtons
  • Author: James Martin

This rich and flavorful French onion soup is the ultimate comfort dish for a cozy evening. Caramelized onions simmered in a savory broth with a touch of brandy and sherry create a deeply satisfying flavor profile. Topped with crusty baguette slices and gooey melted Gruyère cheese, this soup is a decadent treat for the taste buds. Enjoy the warm and comforting aroma as it fills your kitchen while you prepare this classic dish.

— Constant Cookbook

Ingredients

  • 3 tbsp olive oil
  • 3 large onions
  • 2 sprigs thyme
  • 1 tbsp soft brown sugar
  • 2 garlic
  • 200ml/7fl oz white wine
  • 1 heaped tbsp plain flour
  • 50ml/2fl oz brandy
  • 50ml/2fl oz dry sherry
  • 1 litre/1¾pints fresh dark beef stock
  • 1 baguette
  • 110g/4oz Gruyère

Instructions

  • Heat a large frying pan or sauté pan until hot, add two tablespoons of olive oil, the onions, thyme and soft brown sugar. Fry for 10-15 minutes over a medium-low heat, or until softened and golden-brown, stirring occasionally so it doesn’t catch on the bottom.
  • Add the garlic and cook for a minute, then add the white wine and cook until the volume of liquid has reduced by half. Stir in the flour and cook for two minutes.
  • Add the brandy and sherry, then pour in the stock and bring to the boil. Reduce the heat slightly and cook gently for about 10-15 minutes.
  • While the soup simmers, heat a griddle until hot. Drizzle the remaining tablespoon of olive oil over the bread and toast on one side. Set aside.
  • Check the seasoning of the soup, adding plenty of salt, a little black pepper, and more sugar or alcohol if necessary to suit your own taste.
  • Preheat the grill to high.
  • Ladle the soup into bowls and top with the toasted bread. Add the cheese on top of the bread and grill until bubbling and golden-brown.

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Cook Time

1H

Prep Time

PT30M

Yield

Serves 4