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French Dip Sliders

Hot, juicy beef layered with melted cheese and caramelized onions on soft Hawaiian rolls, baked to perfection and served with warm au jus for dipping.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 12 servings
Course: Appetizer, Main Course
Cuisine: American
Calories: 320
Ingredients Method Notes

Ingredients
  

For the Caramelized Onions
  • 3 tablespoons unsalted butter
  • 1 medium onion, thinly sliced
  • 2 teaspoons fresh thyme, minced
  • 1/4 teaspoon kosher salt
  • 1/4 teaspoon black pepper
For the Sliders
  • 12 pieces sweet rolls (Hawaiian sweet rolls)
  • 10 slices provolone cheese
  • 14 ounces sliced deli roast beef
  • 1/2 cup unsalted butter, melted
  • 1 1/2 tablespoons dried onion soup mix
  • 1 packet au jus gravy mix
  • 3 cups water
  • Fresh chopped parsley for garnish (optional)

Method
 

Caramelizing Onions
  1. In a large skillet over medium heat, melt 3 tablespoons of butter. Add thinly sliced onions and cook for 12-15 minutes, stirring occasionally, until soft and beautifully browned.
  2. Stir in thyme, salt, and pepper, then remove from heat.
Assembling the Sliders
  1. Preheat oven to 350°F. Keep rolls connected and use a large serrated knife to slice horizontally through the entire sheet of rolls.
  2. Place the bottom half, cut side up, into an 11×7 baking dish.
  3. Layer half of the provolone cheese on the bottom layer of rolls. Add all roast beef, spreading evenly.
  4. Top with caramelized onions, then add remaining cheese. Place the top half of the rolls over everything.
  5. Mix together melted butter and dried onion soup mix. Brush or pour evenly over the tops of the rolls.
Baking
  1. Cover the baking dish loosely with foil. Bake for 25 minutes, then remove foil and bake for an additional 5 minutes until golden brown.
Making Au Jus
  1. While sliders are baking, prepare au jus according to package directions using 3 cups of water.
Serving
  1. Slice sliders apart and serve immediately with au jus on the side for dipping. Garnish with fresh parsley if desired.

Notes

Store cooled sliders in an airtight container in the refrigerator for up to 3 days. To reheat, place in a 350°F oven for 10-12 minutes, covered, until warm. To freeze, wrap the assembled unbaked sliders in plastic wrap and foil for up to 2 months.