Schuler's Swiss Onion Soup

Warm your soul with the rich, savory layers of Schuler’s Swiss Onion Soup, a comforting classic with a gourmet twist. Featuring deeply caramelized yellow onions simmered in a luscious blend of beef broth and dry white wine, this hearty soup is elevated with fragrant thyme and a touch of golden, toasted baguette slices. Topped with a generous layer of melted Swiss cheese—Gruyère or Emmental for the ultimate creamy finish—and broiled to bubbly perfection, this recipe is a restaurant-quality experience in the comfort of your home. Perfect for chilly evenings or as an elegant starter, this French-inspired soup combines simple ingredients with timeless flavors to create a heartwarming dish that’s destined to impress.

Nutriscore Rating: 64/100

Prep Time:15 mins

Cook Time:60 mins

Total Time:75 mins

Servings: 6

Ingredients

• 6 medium Yellow onions
• 3 tablespoons Unsalted butter
• 2 tablespoons Olive oil
• 2 tablespoons All-purpose flour
• 8 cups Beef broth
• 0.5 cup Dry white wine
• 1 whole Bay leaf
• 1 teaspoon Fresh thyme
• 1 teaspoon Salt
• 0.5 teaspoon Black pepper
• 1 loaf French baguette
• 2 cups Swiss cheese (Gruyère or Emmental)

Directions

Step 1

Peel and thinly slice the onions into evenly-sized half-moon slices.

Step 2

In a large heavy-bottomed pot, melt the butter and olive oil over medium heat.

Step 3

Add the sliced onions to the pot and stir to coat with the butter and oil.

Step 4

Cook the onions, stirring occasionally, for about 25–30 minutes, or until they are deeply caramelized and golden brown.

Step 5

Sprinkle the flour over the caramelized onions and stir well to combine. Cook for 2 minutes to remove the raw flour taste.

Step 6

Slowly add the beef broth, 1 cup at a time, stirring constantly to avoid lumps.

Step 7

Stir in the dry white wine, bay leaf, thyme, salt, and black pepper. Bring the mixture to a simmer.

Step 8

Reduce the heat to low, cover, and simmer for 20 minutes, stirring occasionally to prevent sticking.

Step 9

While the soup simmers, preheat your oven to 375°F (190°C). Slice the baguette into 1-inch thick rounds and place them on a baking sheet.

Step 10

Toast the baguette slices in the oven for 10 minutes, flipping halfway through, until they are crisp and lightly golden.

Step 11

Preheat your oven’s broiler. Ladle the hot soup into oven-safe bowls. Place a toasted baguette slice on top of each bowl and sprinkle generously with grated Swiss cheese.

Step 12

Place the bowls under the broiler for 2–3 minutes, or until the cheese is melted and bubbly. Remove carefully with oven mitts.

Step 13

Serve the soup immediately, garnished with a sprig of thyme if desired. Enjoy the rich, savory flavors of this comforting dish!

Nutrition Facts

Serving size	(3520.2g)

Amount per serving	% Daily Value*
Calories	3763.6

Total Fat 224.9g	0%
Saturated Fat 118.5g	0%
Polyunsaturated Fat 2.8g
Cholesterol 519.0mg	0%
Sodium 11871.9mg	0%
Total Carbohydrate 229.4g	0%
Dietary Fiber 18.1g	0%
Total Sugars 35.0g
Protein 195.1g	0%

Vitamin D 28.7IU	0%
Calcium 5170.4mg	0%
Iron 13.5mg	0%
Potassium 2819.5mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 54.4%

Protein: 21.0%

Carbs: 24.7%