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French Onion Soup Recipe

French Onion Soup Recipe

5 from 17 reviews

A comforting and rich French Onion Soup recipe that features caramelized onions simmered in a flavorful broth, topped with cheesy toast. Perfect for a cozy night in or to impress guests with its depth of flavor.

Ingredients

Scale

Main Soup:

  • 100 g / 3.5oz unsalted butter
  • 1.25 kg / 2.5 lb brown / yellow onions, peeled, halved, thinly sliced top to bottom
  • 3/4 cup (185ml) dry white wine, optional
  • 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
  • 2 dried bay leaves (or 3 fresh)
  • 3 sprigs fresh thyme
  • Salt and pepper

Cheesy Toast:

  • 68 slices French baguette or other softish bread
  • 100 g / 3.5 oz gruyere or mozzarella cheese, or other melting cheese of choice
  • Fresh parsley or thyme leaves, for garnish

Instructions

  1. Caramelise Onions (See Notes for SLOW COOKER option)

    Melt butter in a heavy based casserole pot over medium heat. Add onions and cook until softened and golden.

  2. Make Soup:

    Deglaze with wine, add flour, then pour in broth and herbs. Simmer for 30 minutes.

  3. Cheese Toast:

    Toast bread, top with cheese, then grill until melted and golden.

Notes

  • For a Slow Cooker version, caramelize onions on low for 10-12 hours.
  • White wine can be omitted or substituted with broth.
  • Choose a bread that toasts well and complements the cheese.

Nutrition

Keywords: French Onion Soup, Soup Recipe, Comfort Food, Cheesy Toast