Sándwich de Roast Beef con Cebolla Caramelizada, Gruyère y Aioli de Mostaza Dijon

This Roast Beef Sandwich recipe with Caramelized Onion, Gruyère, and Dijon Mustard Aioli combines a hot roast beef sandwich with caramelized onion, Gruyère, and Dijon aioli. It's a delicious option to prepare at home and share at a special meal without overcomplicating it.

Ingredients

Para la cebolla caramelizada

• 2 large yellow onions, thinly sliced
• 2 tablespoons unsalted butter
• 1 tablespoon extra virgin olive oil
• 1 teaspoon of muscovado sugar
• ½ teaspoon salt
• 2 tablespoons of dry white wine

For the aioli

• ½ cup mayonnaise
• 1 tablespoon Dijon mustard
• 1 finely grated garlic clove
• 1 teaspoon of honey
• 1 teaspoon of yellow lemon juice
• Freshly ground black pepper to taste

For the sandwich

• 4 ciabatta or individual baguette breads
• 500 g of roast beef in very thin slices
• 8 slices of Gruyère cheese
• 2 tablespoons of butter
• 2 cups of arugula
• Sliced pickles (optional)

Step-by-step preparation

Step 1: Caramelize the onion

1. Heat the butter and oil in a large skillet.
2. Add the onions and salt.
3. Cook over medium-low heat for 25 to 30 minutes, stirring occasionally.
4. When deeply golden, add the muscovado sugar and white wine.
5. Cook 2 more minutes until the liquid evaporates.
6. Reserva.

Step 2: Prepare the aioli

1. Mix all ingredients until a homogeneous sauce is obtained.
2. Refrigerate while you prepare the rest.

Step 3: Heat the roast beef

1. In a skillet, add two tablespoons of water or a little beef broth.
2. Add the roast beef for only 30 seconds.
3. It should be heated without overcooking to preserve its juiciness.

Step 4: Assemble

1. Open the bread in half.
2. Spread aioli on both sides.
3. Place the Gruyère cheese.
4. Add the hot roast beef.
5. Incorporate abundant caramelized onion.
6. Add the arugula and, if desired, a few slices of pickle.

Step 5: Gratinate

1. Lightly brush the outside of the bread with butter.
2. Take the sandwich to a press or skillet.
3. Cook until the bread is golden and the Gruyère is completely melted.

¿Te animas a prepararla?

This Roast Beef Sandwich recipe with Caramelized Onion, Gruyère, and Dijon Mustard Aioli is perfect to enjoy at home and share with those you love most. If you prepare it, tell me in the comments what touch you would give it or with what you would serve it.