Classic French Onion Soup with Gruyere Croutons

A rich and savory French onion soup, slowly caramelized to perfection, topped with crusty baguette croutons and melted Gruyere cheese.

Prep Time

20 minutes

Total Time

80 minutes

Calories

625 kcal

Difficulty

Medium

Equipment

3 items

Cost

£3.14/serving

Season:

Meal Type:

Cuisine:

Mood:

Ingredients

Servings

3lbsYellow onions(Thinly sliced)

£1.50

4tbspButter(Unsalted)

£0.50

2tbspOlive oil(Extra virgin)

£0.30

0.5cupDry Sherry(Or dry white wine)

£2.00

6cupsBeef broth(Low sodium)

£2.50

2cupsChicken broth(Low sodium)

£0.80

1 Bay leaf( )

£0.10

2sprigsFresh thyme(Or 1 teaspoon dried thyme)

£0.60

1tbspWorcestershire sauce( )

£0.20

To taste Salt( )

£0.10

To taste Black pepper(Freshly ground)

£0.15

8slicesBaguette(1/2-inch thick)

£1.20

4ozGruyere cheese(Grated)

£2.50

1 Garlic clove(minced)

£0.10

Total Cost

£12.55

£3.14 per serving

Instructions

1.
Melt butter and olive oil in a large Dutch oven or heavy-bottomed pot over medium heat. Add the sliced onions and cook, stirring occasionally, until they soften and begin to caramelize, about 20-30 minutes. Reduce heat to low if onions begin to burn, ensure even browning and stirring every 5-10 minutes.
2.
Add minced garlic and cook for 1 minute, until fragrant.
3.
Deglaze the pot with dry sherry or white wine, scraping up any browned bits from the bottom. Cook until the liquid is almost completely evaporated, about 2 minutes.
4.
Add beef broth, chicken broth, bay leaf, thyme, and Worcestershire sauce to the pot. Bring to a simmer, then reduce heat and simmer for at least 30 minutes, or up to 1 hour, to allow the flavors to meld.
5.
While the soup simmers, prepare the Gruyere croutons. Preheat oven to 375°F (190°C). Arrange baguette slices on a baking sheet and lightly toast for 5-7 minutes, until lightly golden.
6.
Remove baguette slices from oven and top each with a generous amount of grated Gruyere cheese.
7.
Once the soup has simmered, season with salt and pepper to taste. Remove the bay leaf and thyme sprigs (if using fresh).
8.
Ladle soup into oven-safe bowls. Place 2 Gruyere croutons on top of each bowl of soup.
9.
Place the bowls on a baking sheet and broil in the oven for 2-3 minutes, or until the cheese is melted and bubbly and the croutons are golden brown. Watch carefully to prevent burning.
10.
Let cool slightly before serving. Be careful, the bowls will be hot!

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My Notes

Nutrition Information

Nutrition per serving (450g)

625 kcal / 2615 kJ

Carbs

45g

17% of RDA

Fat

34g

49% of RDA

Protein

32g

64% of RDA

Detailed Breakdown

Fibre

6 g

20% of RDA

Sugar

18 g

20% of RDA

Sodium

1400 mg

61% of RDA

Saturated Fat

20 g

100% of RDA

Chef's Tips

For a deeper, richer flavor, use a combination of beef broth and chicken broth. You can also add a splash of red wine vinegar towards the end of cooking for extra tang.

The longer the onions caramelize, the more flavorful the soup will be. Be patient and don't rush the process.

If you don't have oven-safe bowls, you can broil the soup in a baking dish or on a baking sheet lined with parchment paper.

Instead of Gruyere, you can use other cheeses like Swiss, Provolone, or Mozzarella.

Cooking Equipment

Dutch oven or large pot

Oven-safe bowls

Baking sheet

Wine Pairings

No wine pairing suggestions available for this recipe.

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Chef's Tips

For a deeper, richer flavor, use a combination of beef broth and chicken broth. You can also add a splash of red wine vinegar towards the end of cooking for extra tang.

The longer the onions caramelize, the more flavorful the soup will be. Be patient and don't rush the process.

If you don't have oven-safe bowls, you can broil the soup in a baking dish or on a baking sheet lined with parchment paper.

Instead of Gruyere, you can use other cheeses like Swiss, Provolone, or Mozzarella.

Classic French Onion Soup with Gruyere Croutons

Ingredients

Instructions