French Onion Soup

There are recipes that rush you, and recipes that invite you to slow down.This French Onion Soup belongs firmly in the second category.

Thinly sliced onions are gently caramelized until deep golden and sweet, then simmered with beef stock and white wine for a rich, savory broth. Finished with toasted French bread and melted Gruyère, this is a timeless, comforting soup that feels especially right on cold days.

Perfect for making ahead, freezing, or serving to guests straight from the broiler, this is classic French comfort at its most rewarding.

INGREDIENTS

• 45 g unsalted butter (3 tbsp)

• 1.3–1.4 kg yellow onions, thinly sliced (3–4 large)

• ¾ tsp kosher salt, plus more to taste

• 2 litres good beef stock (8 cups)

• 240 ml dry white wine

  
  

  (Sauvignon Blanc or Pinot Grigio are perfect)

• 1 tbsp dry sherry

  
  

  (or cognac or brandy if that’s what’s on hand)

• 1 tbsp all-purpose flour

• ½ tsp black pepper, plus more to taste

• 8–12 slices French bread, about 1.25 cm thick

• 150 g Gruyère cheese, grated (about 1½ cups)

METHOD

1. Let the onions take their time

Melt the butter in a heavy Dutch oven over medium heat. Add the onions and ½ tsp salt, stir, cover, and let them soften for 5 minutes.Uncover, lower the heat slightly, and let the onions slowly caramelize, stirring occasionally. This takes 45–60 minutes and rewards patience with deep, amber sweetness. If they rush, turn the heat down and breathe.

2. Warm the broth

While the onions do their thing, gently warm the beef stock in a separate saucepan over low heat. Hot stock makes a happier soup.

3. Deglaze and deepen

When the onions are richly golden, pour in the wine and sherry. Bring to a gentle boil, scraping up every bit of flavor from the bottom of the pot. Stir in the flour and let it cook for 1–2 minutes until lightly thickened.

4. Bring it together

Slowly add the warm stock, remaining ¼ tsp salt, and black pepper. Simmer uncovered for 10 minutes. Taste. Adjust seasoning. This is where you make it yours.

5. The broiled finale

Heat the broiler. Ladle soup into oven-safe bowls set on a baking sheet. Float the bread on top and shower generously with Gruyère.

Broil for 1–2 minutes, watching closely, until the cheese is bubbling, bronzed, and irresistible.

Serve immediately, preferably somewhere warm with snow outside the window

Please watch the video below. Enjoy your adventure time in the kitchen.

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https://www.youtube.com/watch?v=bsNYjD6fz-Q