French Onion Beef Short Rib Soup
This French Onion Beef Short Rib Soup is the ultimate cold-weather comfort bowl, combining two beloved classics into one extraordinary dish. Fall-off-the-bone braised beef short ribs are slow-cooked in a rich red wine and beef broth until deeply tender, then shredded into a silky soup base built on hours of sweet, jammy caramelized onions. Every serving is crowned with toasted baguette slices and a blanket of bubbling, golden Gruyere cheese finished under the broiler — delivering all the drama of classic French onion soup with the hearty, soul-warming richness of a braised short rib dinner.
Equipment
- Large Dutch oven (6 to 7 quart) Essential for searing and braising the short ribs and building the soup
- Heavy-bottomed skillet or wide pan (12-inch) For caramelizing the onions low and slow
- Baking sheet For toasting the baguette slices and holding soup bowls under the broiler
- Oven-safe soup bowls or French onion soup crocks For finishing under the broiler; broiler-safe crocks recommended
- Tongs For searing and handling the short ribs
- Chef's knife and cutting board For slicing onions and herbs
- Fine mesh strainer or slotted spoon For straining and skimming the braising broth
- Fat separator (optional) For removing surface fat from the braising broth
- Ladle For serving the soup
Ingredients
For the Beef Short Ribs
- 3 lbs bone-in beef short ribs about 1.35kg, 4 to 6 pieces
- 1 tsp kosher salt for seasoning the ribs
- 1/2 tsp black pepper for seasoning the ribs
- 2 tbsp neutral oil such as avocado or vegetable oil
- 3 garlic cloves smashed
- 2 sprigs fresh thyme
- 1 sprig fresh rosemary
- 1 cup dry red wine 240ml; such as Cabernet Sauvignon or Burgundy
- 4 cups low-sodium beef broth 960ml; for the braise
For the Caramelized Onions
- 3 lbs yellow onions about 1.35kg, approximately 6 medium onions, thinly sliced
- 4 tbsp unsalted butter 57g; for caramelizing the onions
- 1 tbsp olive oil 15ml; for caramelizing the onions
- 1 tsp kosher salt for the onions
- 1 tsp granulated sugar helps draw out moisture and speeds caramelization
- 1 tbsp dry sherry or dry white wine; optional, for deglazing the onion pan
For the Soup
- 2 tbsp unsalted butter 28g; for building the soup base
- 1 tbsp all-purpose flour for the roux
- 1/2 cup dry white wine 120ml; or additional red wine
- 4-5 cups beef broth 960ml-1.2L additional broth, as needed to reach desired consistency
- 1 tsp Worcestershire sauce
- 1 tsp fresh thyme leaves or 1/2 tsp dried thyme
- salt and black pepper to taste
For the Cheesy Crouton Topping
- 1 French baguette sliced into 3/4-inch (2cm) rounds
- 1 1/2 cups Gruyere cheese about 170g (6 oz), freshly grated
- 1/2 cup Swiss cheese about 57g (2 oz), freshly grated; optional but recommended
Instructions
- Pat the short ribs completely dry with paper towels, then season all sides generously with 1 tsp kosher salt and 1/2 tsp black pepper. Heat 2 tbsp neutral oil in a Dutch oven over medium-high heat until shimmering, then sear the ribs in batches for 3 to 4 minutes per side until a deep brown crust forms on all sides. Transfer to a plate and set aside.
- Reduce the heat to medium and add the 3 smashed garlic cloves to the drippings, cooking for 60 seconds until fragrant. Pour in 1 cup of red wine and scrape up all browned bits from the bottom, letting it reduce by half (2 to 3 minutes), then add 4 cups of beef broth, the thyme sprigs, and rosemary sprig.
- Return the seared short ribs and any accumulated juices to the Dutch oven, place the lid on, and transfer to a preheated 325°F (160°C) oven. Braise for 2.5 to 3 hours until the meat is fork-tender and pulling away from the bone, adding a splash of broth halfway through if the liquid level drops significantly.
- While the ribs braise, melt 4 tbsp butter with 1 tbsp olive oil in a large skillet over medium-low heat, then add all the sliced onions, 1 tsp salt, and 1 tsp sugar. Cook, stirring every 5 to 10 minutes and adding splashes of water if they stick, for 45 to 60 minutes until deep golden, very soft, and reduced to about a quarter of their original volume. Add dry sherry if using and stir for 1 minute.
- Remove the short ribs from the Dutch oven and strain the braising liquid through a fine mesh strainer into a large bowl, discarding the solids. Let the broth rest for 5 minutes, then skim off the surface fat with a spoon or use a fat separator.
- Once cool enough to handle, use two forks to pull the short rib meat from the bones, discarding the bones and any large pieces of fat. Shred the meat into large, rustic chunks and set aside.
- Melt 2 tbsp butter in the Dutch oven over medium heat, whisk in 1 tbsp flour, and cook for 1 minute, then pour in 1/2 cup white wine and whisk until smooth. Add the strained braising broth, 4 to 5 cups additional beef broth, the caramelized onions, shredded short rib meat, Worcestershire sauce, and thyme leaves. Simmer for 10 to 15 minutes, then season to taste with salt and pepper.
- Arrange the baguette slices on a baking sheet and broil on high for 1 to 2 minutes per side, watching closely, until golden and lightly toasted on both sides. Remove and set aside.
- Ladle the hot soup into oven-safe bowls, float 2 to 3 toasted baguette slices on top, and cover generously with the grated Gruyere (and Swiss if using). Place the bowls on a baking sheet and broil on high for 2 to 4 minutes until the cheese is fully melted, bubbling, and golden. Serve immediately.
Notes
- Pat the short ribs completely dry before searing — surface moisture prevents browning and reduces the depth of flavor in the final broth.
- Do not rush the caramelized onions. Cooking them over genuinely low heat for 45 to 60 minutes is essential; high heat produces bitter, uneven results rather than the sweet, jammy base this soup needs.
- Skim the surface fat from the braising broth thoroughly. Short ribs are well-marbled and will release a significant amount of fat during braising, which can make the finished soup greasy if not removed.
- Use a wine you would drink. The wine is a core flavor component of both the braise and the finished soup — avoid anything labeled "cooking wine" and choose a dry, drinkable red like Cabernet Sauvignon, Merlot, or Burgundy.
- Always use freshly grated Gruyere. Pre-shredded cheese contains anti-caking agents that prevent smooth melting. Grating from a block gives you a superior, evenly melted, golden crust under the broiler.
- Make-ahead tip: The braised short ribs and caramelized onions can both be prepared 1 to 2 days in advance and stored separately in the refrigerator. Assemble and finish the soup when ready to serve.
- Storage: The soup base (without bread and cheese) keeps in an airtight container in the refrigerator for up to 4 days, or in the freezer for up to 3 months. Thaw overnight in the refrigerator before reheating.
- Reheating: Warm the soup base gently on the stovetop over medium-low heat, adding a splash of beef broth if it has thickened. Then top with fresh toasted baguette and cheese and finish under the broiler as directed.
- Cheese substitutions: If Gruyere is unavailable, provolone, fontina, or a combination of Swiss and mozzarella all melt well and deliver a similar richness and flavor.
- For a slow cooker version, sear the ribs and deglaze the pan on the stovetop first, then transfer to a slow cooker with the broth and cook on low for 7 to 8 hours. Caramelize the onions separately and add before serving.
Nutrition
Serving: 1BowlCalories: 620kcalCarbohydrates: 28gProtein: 42gFat: 34gSaturated Fat: 16gPolyunsaturated Fat: 2gMonounsaturated Fat: 13gCholesterol: 130mgSodium: 890mgPotassium: 780mgFiber: 3gSugar: 9gVitamin A: 12IUVitamin C: 10mgCalcium: 30mgIron: 25mg
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