French Dip Sandwich with Caramelized Onions

Ingredients

For the Sandwich:

• 1 lb (450 g) thinly sliced roast beef

• 4 sandwich rolls or baguettes, split

• 1 cup caramelized onions (recipe below)

• 4 slices provolone or Swiss cheese

• 1 tablespoon butter, for toasting rolls

For the Au Jus:

• 2 cups beef broth

• 1 tablespoon Worcestershire sauce

• 1 teaspoon garlic powder

• Salt and black pepper, to taste

For the Caramelized Onions:

• 2 large onions, thinly sliced

• 2 tablespoons butter

• 1 tablespoon olive oil

• Pinch of salt

• 1 teaspoon sugar (optional, for extra sweetness)

🔪 Instructions

1. Caramelize the Onions

1. Heat butter and olive oil in a skillet over medium-low heat.

2. Add onions and a pinch of salt, cook slowly for 20–25 minutes, stirring occasionally, until golden brown and sweet.

3. Optional: Sprinkle sugar halfway through to enhance caramelization.

2. Prepare the Au Jus

1. In a small saucepan, combine beef broth, Worcestershire sauce, garlic powder, salt, and pepper.

2. Heat until warm and simmer gently for 5 minutes. Keep warm for dipping.

3. Assemble the Sandwich

1. Preheat a skillet or griddle over medium heat.

2. Butter the inside of the rolls lightly and toast them until golden.

3. Layer roast beef, caramelized onions, and cheese inside each roll.

4. Press gently and heat in the skillet until cheese melts (~1–2 minutes).

4. Serve

• Serve hot with au jus on the side for dipping.

• Optional: Garnish with fresh thyme or parsley.