Description
Classic Homemade Onion Soup is a rich and comforting French favorite featuring slow-caramelized yellow onions, savory broth, and melted Gruyère cheese atop toasted baguette slices. Perfect for chilly evenings or impressing guests, this simple yet flavorful soup delivers a cozy and satisfying meal with pantry staples and easy steps.
Ingredients
Scale
Main Ingredients
- 4 large yellow onions, thinly sliced
- 3 tablespoons unsalted butter
- 4 cups beef broth or vegetable broth
- 1/2 cup dry white wine (optional)
- 1 French baguette, sliced into rounds
- 2 cups grated Gruyère cheese
- 2 cloves garlic, finely minced
- 2 teaspoons fresh thyme leaves
- Salt, to taste
- Black pepper, to taste
Instructions
- Caramelize the Onions: Start with thinly sliced yellow onions and cook them slowly in butter over medium-low heat. This step takes patience, roughly 30-40 minutes, but it is essential to bring out their rich sweetness and deep golden color. Stir occasionally to avoid burning and ensure even caramelization.
- Add Garlic and Herbs: Once the onions are beautifully caramelized, add finely minced garlic and fresh thyme. Cook for another minute or two until the garlic becomes fragrant, stirring carefully to combine the flavors.
- Deglaze the Pot: Pour in white wine to deglaze the pan, scraping up all those flavorful browned bits stuck to the bottom. Allow it to simmer until the wine reduces by half, intensifying the soup’s depth.
- Add Broth and Simmer: Pour in your choice of beef or vegetable broth, bringing the mixture to a gentle simmer. Let it cook uncovered for around 20-30 minutes, blending the flavors beautifully while slightly reducing the liquid.
- Toast the Bread: While the soup simmers, slice the baguette into rounds and toast until golden and crisp. This adds the crucial crunch beneath the melted cheese topping.
- Assemble and Broil: Ladle the hot soup into oven-safe bowls, place toasted bread slices on top, and generously sprinkle Gruyère cheese. Place under the broiler for a few minutes until the cheese is bubbly and golden brown.
Notes
- Patience is key: Take your time caramelizing onions to unlock their natural sweetness and depth.
- Use a heavy-bottomed pot to prevent burning during the long cooking process.
- Don’t rush the broiling; keep an eye on the cheese to melt evenly without burning.
- Season gradually: Taste the soup throughout cooking and adjust salt and pepper as flavors develop.
- Fresh herbs matter: Using fresh thyme adds a bright, earthy aroma that infuses the broth.
Nutrition
- Serving Size: 1 bowl (about 1.5 cups)
- Calories: 320
- Sugar: 10 g
- Sodium: 750 mg
- Fat: 18 g
- Saturated Fat: 10 g
- Unsaturated Fat: 6 g
- Trans Fat: 0 g
- Carbohydrates: 25 g
- Fiber: 3 g
- Protein: 15 g
- Cholesterol: 45 mg
Keywords: French onion soup, caramelized onion soup, classic onion soup, homemade soup, comfort food
