Internet-Famous Caramelized Onion
Roast Beef Sandwich

Elevate your lunch with this internet-famous sandwich, featuring tender roast beef, melted cheddar, and savory caramelized onions on crusty ciabatta.

Ingredients

• 500 g roast beef
• 2 white onions
• 4 slices cheddar cheese
• 1 loaf ciabatta bread
• 10 g olive oil
• 1 tbsp black pepper
• 1 tbsp fine salt
• 1 tbsp chopped parsley
• 0.5 tbsp broth
• 0.5 tbsp light soy sauce

Instructions

1. 1Season the beef

   

   Place the beef on a wooden cutting board. Evenly sprinkle with olive oil, black pepper, salt, and chopped parsley to season. Let the beef marinate for about 10 minutes to allow the flavors to penetrate the meat.

   Tip: Ensure the seasoning is distributed evenly across all sides of the beef for a flavorful crust.
2. 2Sear the beef

   

   Carefully place the marinated beef into a preheated pan. Sear the meat over medium-high heat until a golden-brown crust forms on all sides, locking in the juices.

   Tip: Do not move the beef too frequently in the pan to ensure a deep, even sear.
3. 3Caramelize the onions

   

   Add sliced white onions to a pan along with black pepper, chopped parsley, a splash of broth, and light soy sauce. Stir-fry over medium heat until the onions are soft, translucent, and beautifully caramelized.

   Tip: Patience is key; cooking the onions slowly on lower heat brings out their natural sweetness.
4. 4Slice the beef

   

   Once the beef is cooked to your desired doneness, remove it from the heat and let it rest for a few minutes. Place the roast on a cutting board and carefully slice it in half.

   Tip: Resting the meat before slicing keeps it tender and prevents the juices from running out.
5. 5Prepare the sauce

   

   In a small bowl, whisk together the ingredients for your creamy white sauce. Continue stirring until the mixture is smooth, well-combined, and reaches a uniform consistency.

   Tip: Whisking vigorously will ensure the sauce is perfectly emulsified and creamy.
6. 6Assemble the sandwich

   

   Take a halved ciabatta loaf and generously spread the prepared creamy white sauce over the cut surface. Ensure the sauce covers the bread evenly to provide a moist base for the sandwich.

   Tip: Applying the sauce right to the edges of the bread ensures every bite is flavorful.
7. 7Layer the cooked beef

   

   Take the prepared, thinly sliced cooked beef and arrange it evenly across the base of your bread, ensuring full coverage for every bite.

   Tip: Make sure the beef is distributed evenly so the sandwich has a consistent thickness.
8. 8Add the cheddar cheese

   

   Place generous slices of cheddar cheese directly over the layer of beef, covering it completely to ensure it melts properly when heated.

   Tip: Using high-quality cheddar will provide a better melt and flavor contrast with the beef.
9. 9Top with caramelized onions

   

   Add the previously stir-fried, caramelized onions over the cheese layer, spreading them out to ensure flavor in every part of the sandwich.

   Tip: Caramelizing the onions slowly brings out a natural sweetness that balances the savory beef and cheese perfectly.
10. 10Close the sandwich

    

    Carefully place the top half of the bread over the assembled fillings to close the sandwich, pressing down lightly to secure everything in place.

    Tip: A quick press helps the components stick together, making the sandwich easier to slice and eat.

Storage & Reheating

Burn It Off

Frequently Asked Questions