Why I Love This Recipe

Nothing beats a slow-cooked pot roast on a cold day, and this version might be my favorite. As the roast cooks, the onions break down into the gravy, creating the rich, savory flavor you’d expect from a bowl of French onion soup. The beef becomes fall-apart tender, and every bite is coated in a silky sauce made with red wine, beef broth, Worcestershire sauce, and fresh thyme. Served over creamy mashed potatoes, it’s the kind of dinner that feels extra special but mostly lets the oven do the work.

Enjoying The Leftovers

The leftovers might be even better than the first night. Pile the shredded beef onto toasted rolls for French onion-style sandwiches, serve it over mashed potatoes, or spoon it over roasted vegetables for another comforting meal.

Storing

Store in the refrigerator for up to 4 days or freeze for up to 3 months.

Reheating

Warm everything gently on the stovetop over medium-low heat or in the microwave until heated through. If the gravy thickens in the refrigerator, stir in a splash of beef broth while reheating until it reaches your desired consistency.

A pot of roast & mash potatoes with chives sprinkled on top with a bowl of the same thing being held up to the camera.
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French Onion Pot Roast

This French Onion Pot Roast features slow-braised chuck roast, caramelized onions, and a rich homemade gravy with red wine, beef broth, Worcestershire sauce, and thyme. Served with creamy mashed potatoes, it's an easy comfort food dinner that's perfect for Sunday supper, holidays, or cozy family meals.
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Prep Time 25 minutes
Cook Time 4 hours
Total Time 4 hours 25 minutes
US M
Servings 8

Ingredients

For the roast and gravy
  • 3-4 lb chuck roast
  • 2 tbsp avocado oil
  • 3 large yellow onions, thinly sliced
  • 4 cloves garlic, minced
  • 2 tbsp tomato paste
  • 1 cup dry red wine
  • 3 cups beef broth
  • 2 tbsp worcestershire sauce
  • 1 tsp dried thyme
  • 1 bay leaf
  • 2 tbsp butter
  • Salt and pepper to taste
For the mashed potatoes
  • 2 lb yukon gold potatoes, peeled & cubed
  • 1/2 cup half & half or milk
  • 3 tbsp butter
  • 1/2 cup sour cream
  • 1 tsp salt
  • 1/2 tsp pepper
  • 1/2 tsp garlic powder
For the topping
  • 1 cup shredded Gruyère cheese
  • Freshly chopped chives
US – M

Instructions

  • Preheat the oven to 325°F. Season the chuck roast generously with salt and pepper on all sides.
  • Heat the oil in a large Dutch oven over medium-high heat. Sear the roast on all sides until deeply browned, about 4-5 minutes per side. Remove and set aside.
  • Lower the heat to medium, add butter and onions with a pinch of salt. Cook for 25-30 minutes, stirring occasionally, until the onions are golden and caramelized.
  • Add garlic and tomato paste and cook for 1 minute, stirring until fragrant. Pour in the red wine and simmer for 2-3 minutes, scraping up any browned bits from the bottom, until the liquid is reduced by half.
  • Stir in Worcestershire sauce, broth, thyme, and the bay leaf. Return the roast (and its juices) to the pot. Cover and bake for 2½-3 hours, until the beef is fork-tender.
  • Remove the roast and shred it into chunks. Discard the bay leaf, then stir the beef back into the onion gravy.
  • While the roast finishes, bring a large pot of salted water to a boil. Add the potatoes and cook for 15-20 minutes until fork-tender. Drain and mash with butter, half & half, sour cream, salt, pepper, and garlic powder until smooth.
  • Increase the oven temperature to 400°F. Spread the mashed potatoes over the beef-and-onion mixture in the Dutch oven. Top with shredded Gruyère.
  • Bake uncovered for 20-25 more minutes, until the cheese is melted, bubbly, and golden brown. Let rest for 10 minutes, sprinkle with chives, and serve warm.

Nutrition Per Serving

Calories: 661kcal | Carbohydrates: 28g | Protein: 43g | Fat: 40g | Fiber: 3g