Roasted Beef Flank: Juicy Spanish Oven Classic with Garlic (62) 2026

Isabel Gaines
Roasted Beef Flank: Juicy Spanish Oven Classic with Garlic (62)
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Roasted beef flank is one of those dishes that looks impressive but asks very little of you. A budget-friendly cut gets seasoned, seared and then finished in the oven with onions, carrots, small potatoes and a splash of red wine, so the meat turns out juicy and packed with flavor.

Sliced roasted beef flank served on a platter


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It is a great choice for a special-occasion meat dish when you do not want to spend hours in the kitchen. The oven does most of the work while you get on with other things, and the result is a tender roast that will impress everyone at the table.

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Roasted beef flank fresh out of the oven in a baking tray

Ingredients for Roasted Beef Flank

For 4 servings

  • 1 kg beef flank
  • Salt
  • Ground black pepper
  • Half an onion
  • 2 carrots
  • 12 small roasting potatoes
  • 100 ml olive oil
  • 2 garlic cloves
  • 50 ml red wine
  • 2 sprigs thyme
  • 2 sprigs rosemary
  • A few peppercorns (optional)

Ingredients for roasted beef flank arranged on a table

How to Make Roasted Beef Flank Step by Step

1. Cut and season the beef and preheat the oven

Ask your butcher to cut 1 kg of beef flank into strips. When you are ready to cook, cut the meat into pieces, season with salt and pepper to taste, and let it come to room temperature while you prepare the rest of the ingredients. Preheat the oven to 200 °C.

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Beef flank cut into pieces and seasoned

2. Chop the vegetables and peel the potatoes

Peel and chop half an onion and 2 carrots, then set aside. Peel the 12 small roasting potatoes and keep them whole in water so they do not oxidize.

Chopped onion and carrots with peeled potatoes

3. Heat the oil and sear the meat

Heat 100 ml of olive oil in a wide pot over medium-high heat and add 2 whole garlic cloves. Once the oil is hot and the garlic starts to brown, sear the pieces of meat a few at a time on all sides for a few minutes.

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Sealing pieces of beef flank in a pot with olive oil and garlic

4. Transfer the meat to a baking tray

As each piece of meat is seared, move it to a baking tray.

Seared beef flank pieces placed in a baking tray

5. Sauté the vegetables and add wine and herbs

Once all the meat is seared, add the reserved vegetables to the same pot with the same oil and sauté for a few minutes. When they start to turn translucent, pour in 50 ml of red wine and add 2 sprigs of fresh thyme and rosemary. Let the wine reduce for a couple of minutes.

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Sautéing onion and carrots in the pot with red wine and herbs

6. Add the sauce to the meat

Transfer the contents of the pot to the tray with the meat, spreading it evenly. Optionally, add a few peppercorns to taste; here we used pink and white peppercorns.

Vegetable and wine sauce spooned over the beef in the tray

7. Arrange the potatoes on top

Finally, place the whole potatoes on top and put the tray with the meat into the preheated oven.

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Whole small potatoes arranged on top of the beef and sauce

8. Roast for 1 hour, turning the meat

Cook the beef flank for 1 hour at 200 °C with top and bottom heat, turning the meat a couple of times so it browns evenly all over.

Turning the roasted beef flank in the baking tray

9. Rest before serving

Once the beef flank is ready, remove it from the oven and let it rest for 5 minutes before serving. This allows the juices to distribute evenly throughout the meat.

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Roasted beef flank resting in the tray after baking

10. Serve everything together

After resting, serve the meat on a platter with the potatoes.

Roasted beef flank served on a platter with potatoes

Tips for the Best Roasted Beef Flank

Choose and prepare the cut

Beef flank is an economical cut that benefits from being cut into strips and seared before roasting. Ask the butcher to cut it for you, and let the seasoned meat sit at room temperature while you prep the vegetables for more even cooking.

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Build flavor with the sauce

Searing the meat in olive oil with whole garlic cloves creates a flavorful base. Sautéing the onion and carrots in the same oil and deglazing with red wine and fresh thyme and rosemary gives the roast a rich, aromatic sauce.

Roast and rest for juicy meat

Turn the meat a couple of times during the hour in the oven so it browns evenly. Letting it rest for 5 minutes before serving lets the juices settle, so every slice stays tender and moist.

Prep time 15 minutes
Cook time 1 hour 10 minutes
Total time 1 hour 25 minutes
Servings 4
Category Main course
Cuisine Spanish
Calories per serving 860 kcal

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Isabel Gaines

Author

Isabel Gaines

As a former restaurant owner turned reporter, Isabel brings a unique perspective to Grand Goldman. With decades of experience, her articles on cooking and homemaking are both informative and engaging, reflecting her deep knowledge and love for all things culinary.


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