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French Onion Pot Roast

French Onion Pot Roast is a slow-braised beef chuck roast simmered in deeply caramelized onions, broth, and thyme until fall-apart tender. Finish with toasted baguette rounds and melted Gruyere under a broiler for a bubbly, golden top.
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Prep Time 25 minutes
Cook Time 3 hours 30 minutes
Total Time 3 hours 55 minutes
Servings: 6 servings
Course: Main Dish
Cuisine: French-American
Calories: 720
Ingredients Equipment Method Notes

Ingredients
  

Beef chuck roast
  • 3.5 lb beef chuck roast
Onions and aromatics
  • 4 large onions Thinly sliced.
  • 4 clove garlic Minced.
  • 2 tbsp olive oil
  • 3 tbsp unsalted butter
Braising liquids and seasonings
  • 1 cup dry white wine or beef broth Use either wine or broth.
  • 3 cup beef broth
  • 1 tbsp Worcestershire sauce
  • 2 tbsp fresh thyme
  • 2 bay leaves
  • 1 salt and pepper to taste
French onion topping
  • 2 cup Gruyere, shredded
  • 8 baguette, toasted 8 slices.

Equipment

  • 1 Dutch oven

Method
 

Sear the roast
  1. Preheat oven to 325°F. Heat olive oil in a Dutch oven and sear the chuck roast until deeply browned, then remove to a plate.
Caramelize the onions
  1. In the same Dutch oven, melt butter and cook onions over medium-low heat for 30-35 minutes until deeply caramelized, stirring occasionally so they brown evenly.
Build the braising broth
  1. Add minced garlic and cook for about 30 seconds until fragrant, then deglaze with the dry white wine (or beef broth).
  2. Add beef broth, Worcestershire sauce, fresh thyme, and bay leaves, stirring to combine into a rich onion broth.
Braise until fall-apart tender
  1. Return the roast to the Dutch oven, cover, and braise in the oven for 3 to 3-1/2 hours at 325°F until the beef is fall-apart tender.
Finish and broil
  1. Remove the bay leaves, then shred the beef directly in the broth so it soaks up the onion flavor.
  2. Ladle the pot roast into bowls, float toasted baguette on top, and cover with shredded Gruyere.
  3. Broil for 3-4 minutes until the cheese is golden and bubbly.

Notes

For the deepest flavor, keep the onions at medium-low heat and resist rushing them—true caramelization takes time. Refrigerate leftovers up to 3-4 days; reheat gently on the stove or in the microwave. Freezing is OK for the braised beef and onion broth (up to 2-3 months), but add baguette and Gruyere fresh when reheating for the best topping texture. For a gluten-aware option, use gluten-free baguette slices.