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Beef Onion Gratin

Beef Onion Gratin

Indulge in the rich flavors of Beef Onion Gratin, a comforting French-inspired dish with tender beef, caramelized onions, and gooey cheese. Perfect for cozy dinners!
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Prep Time 20 minutes
Cook Time 3 hours
Total Time 3 hours 20 minutes
Servings: 4 people
Calories: 520
Ingredients Equipment Method Nutrition Notes

Ingredients
  

  • 900 g beef bavette or paleron cut into chunks
  • 2 tablespoons olive oil
  • 500 ml beef broth
  • 3 large onions thinly sliced
  • 40 g butter
  • 3 cloves garlic minced
  • 1 tablespoon brown sugar
  • 1 teaspoon fresh thyme
  • 1 tablespoon flour

Equipment

  • Large pot or Dutch oven
  • Baking sheet
  • Mixing bowls
  • Whisk
  • Oven

Method
 

  1. Season the beef generously with salt and pepper and heat olive oil in a large pot.
  2. Sear the beef pieces for about 2 minutes per side until golden brown, then remove and deglaze the pot with a splash of broth.
  3. Melt the butter over medium heat, add onions with a pinch of salt, and cook low and slow until deep amber in color.
  4. Sprinkle flour over the caramelized onions, stir well, and gradually pour in the remaining broth while whisking.
  5. Return the beef and bay leaves to the pot, cover, and simmer gently for 2 hours.
  6. Preheat the oven to 180°C (350°F) and brush both sides of the baguette slices with olive oil.
  7. Bake the baguette slices for 15 minutes until golden and crispy.
  8. Mix beaten eggs, Dijon mustard, sour cream, and half the Gruyère cheese in a bowl.
  9. Spread the egg mixture over the toasted bread slices and arrange the croûtes atop the beef mixture in the pot.
  10. Sprinkle the remaining cheese across the top and bake at 200°C (400°F) for 15 minutes until the cheese bubbles and turns golden brown.
  11. Serve hot and enjoy your Beef Onion Gratin!
  12. Store leftovers in an airtight container for up to 3 days and reheat gently in the oven to retain crunchiness.

Nutrition

Calories: 520kcalCarbohydrates: 30gProtein: 36gFat: 27gSaturated Fat: 12gPolyunsaturated Fat: 0.5gMonounsaturated Fat: 7gCholesterol: 110mgSodium: 850mgPotassium: 800mgFiber: 3gSugar: 4gVitamin A: 500IUVitamin C: 10mgCalcium: 200mgIron: 5mg

Notes

Feel free to substitute bavette or paleron with chuck roast if preferred. If Gruyère isn't available, Swiss or cheddar are great alternatives.
For a gluten-free option, use cornstarch instead of flour. Vegans can use mushrooms and plant-based dairy substitutes for a delicious twist.
Store leftovers in an airtight container for up to 3 days and reheat gently in the oven to retain crunchiness. For longer storage, freeze portions for up to 3 months.
Don't skip the resting step after seasoning the beef to enhance its flavor. Enjoy this cozy dish with family or friends, especially on chilly nights!
Tried this recipe?Let us know how it was!