Onion soup with garlic and cheddar croutons

Warm up with this savory onion soup, featuring tender red onions and leeks, enriched with garlic and fresh thyme. Topped with irresistible cheddar cheese croutons, this recipe promises a comforting and flavorful experience. Perfect for cozy nights in!

  • 08 Apr 2025
  • Cook time 45 min
  • Prep time 15 min
  • 4 Servings
  • 10 Ingredients

Onion soup with garlic and cheddar croutons

Onion soup with garlic and cheddar croutons is a delightful and hearty dish that combines the rich, savory flavors of caramelized onions and leeks with the robust taste of beef broth and red wine. Topped with crispy croutons covered in melted cheddar cheese, this soup is perfect for any cold day or when you're in need of some comfort food.

Ingredients:

2 tbsp butter
30g
2 red onions
320g
2 leeks
360g
2 garlic cloves
6g
2 tbsp all-purpose white wheat flour
30g
1/2 cup red wine
120g
4 cups beef broth
1000g
1 tbsp fresh thyme
16g
1 baguette (french bread)
88g
1/2 cup cheddar cheese
50g

Instructions:

1. Prepare the Ingredients:
- Thinly slice the red onions and leeks (white and light green parts only).
- Mince the garlic cloves.
- Slice the baguette into 1/2 inch thick rounds.
- Grate the cheddar cheese.
- Preheat your oven to 375°F (190°C).
2. Caramelize the Onions and Leeks:
- In a large pot or Dutch oven, melt the butter over medium heat.
- Add the sliced red onions and leeks. Cook, stirring occasionally, until they are soft and caramelized, about 20-25 minutes.
- Add the minced garlic and cook for an additional 1-2 minutes until fragrant.
3. Make the Soup Base:
- Sprinkle the flour over the caramelized onions and leeks, stirring well to combine. Cook for 1-2 minutes to get rid of the raw flour taste.
- Pour in the red wine, stirring constantly, and cook until the wine reduces slightly, about 2-3 minutes.
- Gradually add the beef broth, stirring continuously.
- Add the fresh thyme. Bring the mixture to a boil, then reduce the heat and let it simmer for about 30-35 minutes. Season with salt and pepper to taste.
4. Prepare the Cheddar Croutons:
- While the soup is simmering, arrange the baguette slices on a baking sheet.
- Place the baking sheet in the preheated oven and bake for 5-7 minutes until the bread is lightly toasted.
- Remove the baking sheet from the oven and top each baguette slice with grated cheddar cheese.
- Return the baking sheet to the oven and bake for an additional 3-5 minutes, or until the cheese is melted and bubbly.
5. Serve:
- Ladle the hot onion soup into bowls.
- Float a few cheddar croutons on top of each bowl of soup.
- Optionally, garnish with additional fresh thyme or a sprinkle of grated cheddar cheese.
- Serve immediately and enjoy your delicious Onion Soup with Garlic and Cheddar Croutons!

Tips:

- For a deeper flavor, allow the onions to caramelize slowly over medium-low heat. This process can take up to 30 minutes but is worth the effort.

- Use a good quality beef broth for the best taste. Homemade broth is always a great option if you have the time.

- If you prefer a smoother soup, you can blend the onions and leeks before adding the croutons.

- To make the croutons extra crispy, you can drizzle olive oil over the baguette slices before toasting them.

- Feel free to experiment with different cheeses for the croutons. Gruyère or Swiss cheese can be excellent alternatives to cheddar.

This onion soup with garlic and cheddar croutons is a classic dish that will warm your soul. It's easy to prepare and the combination of the rich broth with the cheesy croutons makes for a truly satisfying meal. Enjoy it with a glass of red wine or some crusty bread on the side, and you have a perfect dinner ready to be served.

Nutrition Facts
Serving Size500 grams
Energy
Calories 330kcal16%
Protein
Protein 11g8%
Carbohydrates
Carbohydrates 40g11%
Fiber 4.64g12%
Sugar 9g9%
Fat
Fat 12g14%
Saturated 6g21%
Cholesterol 30mg-
Vitamins
Vitamin A 170ug19%
Choline 30mg5%
Vitamin B1 0.28mg23%
Vitamin B2 0.26mg20%
Vitamin B3 3.63mg23%
Vitamin B6 0.40mg24%
Vitamin B9 110ug27%
Vitamin B12 0.31ug13%
Vitamin C 18mg19%
Vitamin E 0.99mg7%
Vitamin K 44ug36%
Minerals
Calcium, Ca 200mg16%
Copper, Cu 0.21mg24%
Iron, Fe 3.61mg33%
Magnesium, Mg 54mg13%
Phosphorus, P 200mg16%
Potassium, K 570mg17%
Selenium, Se 14ug26%
Sodium, Na 1160mg77%
Zinc, Zn 1.07mg10%
Water
Water 430g-
* Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

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