This recipe for French Onion Soup is a classic comfort food. It's a hearty and flavorful soup that is perfect for a cold day. The key to this dish is the caramelized onions, which are slowly cooked until they are golden brown and sweet. The onions are then combined with beef broth, bay leaves, and thyme to create a rich and flavorful soup. The soup is traditionally served with a slice of toasted bread topped with melted cheese.
Prepare the Onions: Peel and slice the onions into even pieces.
Caramelize the Onions: In a large pot or Dutch oven, melt the butter and oil over medium heat. Add the sliced onions and stir to coat them with the butter mixture. Cook for about 15 minutes, stirring frequently, until the onions start to soften and turn translucent. Reduce the heat to medium-low and continue cooking, stirring occasionally, for about 30-40 minutes, or until the onions are deeply caramelized to a rich golden brown color. Add the garlic in the last few minutes of cooking, being careful not to let it burn.
Deglaze and Simmer: Increase the heat to medium-high and pour in the white wine to deglaze the pot, scraping up any browned bits from the bottom with a wooden spoon. Let the wine reduce by half, which will take around 5 minutes. Add the beef stock, bay leaves, and thyme. Season with salt and pepper. Bring the mixture to a simmer, then reduce the heat to low and let it gently simmer for about 30 minutes. This will allow the flavors to meld together. Remove the bay leaves before serving.
Broil the Cheese: Preheat your broiler. Place the baguette slices on a baking sheet, top with grated cheese and broil them in the preheated oven until the cheese is bubbly and golden brown, about 2-3 minutes. Watch carefully to prevent burning.
Serve: Carefully remove the baguette from the oven and place them in the bowl of soup. Serve immediately. Enjoy your delicious homemade French Onion Soup!
Notes
Use sliced sourdough for a truly great cup of soup.
Broiling the cheese on the bread means your soup bowls don't have to be oven-safe as they aren't used for cooking.