French Dip Au Jus Recipe

Ingredients

• 2 tablespoons unsalted butter
• 1 large yellow onion, thinly sliced
• 3 garlic cloves, minced
• 4 cups beef broth
• 2 tablespoons Worcestershire sauce
• 1 tablespoon soy sauce
• 1/2 teaspoon dried thyme
• 1/2 teaspoon salt
• 1/4 teaspoon ground black pepper
• 4 hoagie rolls, split
• 4 slices sliced provolone cheese
• 1 pound deli-sliced roast beef