Iconic French Onion Soup from Famous and Barr

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French Onion Soup from Famous and Barr – A Rich, Classic Comfort

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Difficulty

Medium

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Prep Time

30 mins

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Cook Time

240 mins

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Total Time

270 mins

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Servings

I remember the first time I tasted a truly great French onion soup. I was in Paris, training at Le Cordon Bleu, and a chef took us to a tiny bistro near the Palais Royal. The soup arrived in a deep crock, bubbling with Gruyère and a dark, savory broth. But this recipe here, this French onion soup from Famous and Barr, takes me right back to my mother’s kitchen in Morocco, where onions were always the heart of a slow-cooked meal. It’s a classic French onion soup that’s been perfected by a beloved St. Louis department store, and I’m sharing it with you today as the best homemade French onion soup you’ll ever make.

The magic of this soup is in the deep, rich flavor that develops over hours of gentle cooking. The onions are cooked low and slow for nearly two hours until they are meltingly tender and sweet, then the whole pot is simmered for another two hours with beef broth, white wine, and a touch of paprika. The result is a broth that is practically velvet on the tongue. When you spoon it up, the aroma is intoxicating—earthy from the broth, sweet from the caramelized onions, and subtly smoky from the paprika. It’s everything you want from a comforting bowl.

I’ve made this exact recipe countless times in my NYC kitchen, and I’ve learned a thing or two along the way. The secret weapon here is the overnight rest in the fridge—it’s the step that truly deepens the flavor into something unforgettable. In this post, I’m going to walk you through every step, from slicing the onions to broiling the cheese, and I’ll share my best pro tips so you get that perfect, rich result every time. One common mistake I see is rushing the initial sauté of the onions—patience is key here, and I’ll show you why.

Why This French Onion Soup Recipe Is the Best

The flavor secret of this classic French onion soup lies in the technique passed down from the Famous and Barr retail stores. It’s not just about caramelizing onions; it’s about developing a deeply savory, almost umami-rich broth that has a beautiful complexity. My culinary training in Paris taught me the importance of a proper fond (the browned bits at the bottom of the pot), and while this recipe doesn’t rely on browning the onions heavily, the long, slow cooking with flour and paprika creates a unique, velvety body that is both luxurious and comforting.

The texture of this best French onion soup is what sets it apart. The refined method of whisking flour into a portion of the broth prevents lumps and ensures a smooth, silky consistency from the very start. The two-hour simmer melds every flavor together, while the overnight rest allows the soup to mature, creating a depth you simply cannot achieve in a single day. The toasted, Parmesan-dusted baguette slices provide a satisfying crunch that softens beautifully under the broiled Gruyère, offering a perfect contrast to the rich broth.

Homemade French onion soup can seem intimidating, but this recipe is designed to be foolproof for home cooks of all levels. The step-by-step instructions are clear, and the make-ahead component means you can prepare the soup base at your own pace. Once you’ve done the overnight rest, it’s just a matter of assembly and a quick broil. I’ve made this for dinner parties on busy NYC weeknights, and it’s always a showstopper. Trust me, this is a recipe that will make you feel like a professional cook in your own kitchen.

French Onion Soup Recipe Ingredients

Whenever I make this classic French onion soup, I think of my trips to the Union Square Greenmarket in NYC. I pick up the sweetest white onions I can find, always with a little dirt still clinging to them, and a fresh baguette from a neighborhood bakery. The smell of the butter melting in my big pot takes me back to my mother’s kitchen in Morocco, where she’d start every slow-cooked dish the same way. Here is everything you’ll need for this best French onion soup recipe from Famous and Barr.

Ingredients List

5 pounds white onions (medium size)

1/2 cup butter
1 1/2 teaspoon pepper
2 tablespoons paprika

1-2 bay leaves
3/4 cup flour
96 ounces beef broth (3-32 oz containers)

1 cup white wine
Salt to season
1 loaf French baguette (sliced)

3 tablespoons olive oil
1/4 cup Parmesan cheese (grated)
16 ounces Gruyère cheese (can substitute Swiss which I often do)

Ingredient Spotlight

The secret to this soup’s depth is the paprika. It’s an unexpected addition that gives the broth a subtle, earthy warmth. When shopping, look for high-quality Hungarian or Spanish paprika from a spice shop; it makes all the difference. In a pinch, you can use sweet paprika, but avoid smoked paprika here as it will overpower the delicate onion flavor.

The white wine is crucial for deglazing and adding acidity. Use a dry white wine like Sauvignon Blanc or a Pinot Grigio. Avoid anything sweet like Riesling. If you don’t have wine on hand, you can substitute with an equal amount of apple cider vinegar combined with an extra cup of beef broth. The result will be slightly less complex, but still delicious.

Gruyère is the traditional choice for the topping, and with good reason—it melts into a beautiful, stretchy, and nutty crust. However, I often use Swiss cheese as a substitute because it’s more affordable and melts similarly. For the very best results, always grate your own cheese from a block; pre-shredded cheese contains anti-caking agents that prevent it from melting as smoothly.

Original Ingredient	Best Substitution	Flavor / Texture Impact
Gruyère Cheese	Swiss Cheese	Milder, slightly less nutty, but melts beautifully.
White Wine	Apple cider vinegar + broth	More acidic, less complex, but still tenderizes onions.
White Onions	Yellow Onions	Slightly sweeter, deeper flavor after cooking.

How to Make French Onion Soup from Famous and Barr — Step-by-Step

I’m going to walk you through every single step of this famous recipe, so you can feel confident in your kitchen. The key is to embrace the slow cooking process—it rewards you with the most incredible flavor. Let’s get started.

Step 1: Slowly Sauté the Onions

Slice the onions 1/8 inch thick. This is important—too thick and they won’t soften properly. Melt the butter in a large, heavy-bottomed pot over low heat. Add the sliced onions and sauté for 1 1/2 to 2 hours. Stir every 10–15 minutes. They should be meltingly tender and translucent but not browned. This long, slow process develops the sweetness.

💡 mia’s Pro Tip: To get even slices without crying, chill the onions in the fridge for 15 minutes before slicing. Using a sharp knife also releases fewer tear-inducing compounds.

Step 2: Add the Seasonings

Add the pepper, paprika, and bay leaves to the softened onions. Mix well and cook for 2-3 minutes on low, stirring constantly. This blooms the spices, making them more aromatic. The paprika will create a beautiful rust color.

⚠️ Common Mistake to Avoid: Don’t add the paprika over high heat, as it can burn and turn bitter. Keep the heat low and stir constantly during this step.

Step 3: Build the Broth

Add 2/3 of the beef broth (about 64 ounces) to the pot and stir well. In a separate bowl or measuring cup, whisk the flour into the remaining 32 ounces of broth until completely smooth. Pour this flour mixture into the pot, stirring constantly to incorporate it evenly. Add the cup of white wine and stir. Bring the soup to a gentle simmer, then reduce heat and simmer for 2 hours, stirring occasionally.

💡 mia’s Pro Tip: Whisking the flour into cold broth before adding it to the pot is the foolproof way to avoid lumps. This technique, called a slurry, ensures a silky-smooth broth every time.

Step 4: The Overnight Rest

This is the secret step! Once the 2-hour simmer is done, let the soup cool to room temperature. Then, cover the pot and refrigerate it overnight. This allows the flavors to meld and mature, giving you a depth of flavor you simply can’t achieve in one day. It’s like the soup is resting and concentrating its goodness.

⚠️ Common Mistake to Avoid: Don’t skip this step! It’s the key to the “famous” flavor. If you’re short on time, at minimum let it rest for 4-6 hours in the fridge before serving.

Step 5: Toast the Bread

The next day, turn your oven to the broil setting. Arrange the baguette slices on a baking sheet. Brush each slice with olive oil and sprinkle lightly with grated Parmesan cheese. Broil until golden and lightly crisp, watching very carefully—this takes only 1-2 minutes. Set aside.

💡 mia’s Pro Tip: Check on the bread every 30 seconds while broiling. The line between perfectly golden and burnt is very thin. If you have a convection setting, use it for more even browning.

Step 6: Assemble and Broil

Heat the chilled soup on the stove top until hot. Ladle the hot soup into ovenproof bowls. Place one or two slices of the Parmesan toast on top of the soup in each bowl. Generously pile on the grated Gruyère (or Swiss) cheese. Place the bowls on a baking sheet and broil for 3-5 minutes, until the cheese is melted, bubbling, and has golden spots. Watch carefully!

⚠️ Common Mistake to Avoid: Over-broiling will burn the cheese and make it tough. Keep a close eye on it, and rotate the baking sheet halfway through for even melting.

Step 7: Cool and Serve

Let the soup cool for a couple of minutes before serving. The broth and cheese are extremely hot straight out of the oven. Use a long spoon to ensure you get a bit of everything—broth, bread, and cheese—in each bite. Enjoy immediately!

💡 mia’s Pro Tip: The bowls will be very hot. Place them on small plates or trivets to protect your table. I always warn my guests to be careful with the hot crockery!

Step	Action	Duration	Key Visual Cue
1	Sauté onions	1.5–2 hours	Onions translucent, soft, no browning
2	Add spices	2–3 minutes	Onions turn rust color from paprika
3	Simmer soup	2 hours	Broth slightly thickens, aroma deepens
4	Refrigerate overnight	8–12 hours	Flavors meld, soup thickens further
5	Broil bread	1–2 minutes	Bread golden brown edges
6	Broil assembled soup	3–5 minutes	Cheese melts, bubbles, golden spots

Serving & Presentation

Serving this French onion soup is almost as important as making it. I like to pull out my favorite ovenproof bowls—the ones with handles, if you have them, make it easier for guests to handle. Set the table with soup spoons and warn everyone that the bowls will be very hot. In my NYC apartment, I often serve this with a simple green salad dressed with a sharp vinaigrette to cut through the richness of the cheese.

For a special touch, I sometimes sprinkle a tiny bit of chopped fresh thyme or a pinch of flaky sea salt on top of the melted cheese. It adds a pop of color and a final layer of flavor. And while this is a classic French dish, I love serving it with a crusty end of the baguette for dipping. It’s a simple pleasure that always makes me think of the bread my mother would bake in Morocco.

Pairing Type	Suggestions	Why It Works
Side Dish	Simple green salad, roasted asparagus	Adds freshness and acidity to balance rich soup
Beverage	Dry red wine (Pinot Noir), light beer	Complementary earthiness without overpowering
Garnish	Fresh thyme, flaky sea salt, extra black pepper	Adds aroma, texture, and a finishing flourish

Make-Ahead, Storage & Reheating

This is my go-to recipe for busy weeks. The soup base can be made entirely ahead of time, and the overnight rest is actually part of the process. On a busy NYC weeknight, I love knowing that I have a rich, aromatic soup waiting for me in the fridge. The key is to store the components separately for the best texture.