This French Onion Soup takes a classic dish and elevates it with the rich depth of red wine and the aromatic charm of fresh thyme. Perfect for cozy evenings, this recipe is a delightful twist on tradition that will warm your soul and impress your taste buds.
Onions are the star here, offering sweetness and depth once caramelized. Butter and olive oil provide a rich base for sautéing, while the salt and pepper enhance the flavors. A touch of sugar helps the onions caramelize beautifully. The red wine adds complexity and a hint of acidity that balances the sweetness. Beef stock creates a robust and savory backbone, while thyme and bay leaf impart earthy, herbal notes. A baguette provides the perfect crunchy topper, and Gruyère cheese melts into a luscious, golden blanket.
This soup pairs wonderfully with a simple mixed green salad tossed in a light vinaigrette. For an extra touch of elegance, serve with a glass of the same red wine used in the soup. If you’re feeling indulgent, a side of garlic butter sautéed mushrooms complements the flavors beautifully.
Start by melting the butter and olive oil in a large pot over medium heat. This combination ensures your onions won’t stick and will caramelize evenly. Add your thinly sliced onions, followed by salt, pepper, and sugar. Stir them occasionally; patience is key as you wait about 45 minutes for them to turn a deep golden brown. This step is crucial for developing the soup's rich flavor.
Once your onions are ready, pour in the red wine. This will deglaze the pot, so be sure to scrape up any caramelized bits at the bottom — they add so much flavor! Next, add the beef stock, thyme, and bay leaf. Bring everything to a boil, then reduce the heat and let it simmer for about 30 minutes. This allows all the flavors to meld together beautifully.
While the soup is simmering, preheat your oven to broil. After 30 minutes, fish out the thyme sprigs and bay leaf. Ladle the soup into ovenproof bowls, top each with a slice or two of baguette, and heap on the Gruyère cheese. Pop the bowls under the broiler until the cheese is bubbly and golden brown, roughly 3-5 minutes, and voilà — your soup is ready to serve!