French Dip Sliders (Print version)

Melty roast beef sliders with caramelized onions and provolone, served with warm beef au jus for dipping.

# Ingredient List:

→ For the Sliders

01 - 12 slider buns or Hawaiian rolls
02 - 1 lb thinly sliced roast beef
03 - 12 slices provolone cheese
04 - 2 tablespoons unsalted butter, melted
05 - 1 tablespoon Dijon mustard
06 - 1 tablespoon Worcestershire sauce
07 - 1 teaspoon garlic powder
08 - 1 tablespoon poppy seeds

→ For the Caramelized Onions

09 - 2 tablespoons unsalted butter
10 - 1 large yellow onion, thinly sliced
11 - Pinch of salt

→ For the Au Jus

12 - 2 cups beef broth, low sodium
13 - 1 tablespoon Worcestershire sauce
14 - 1 teaspoon soy sauce
15 - 1 teaspoon garlic powder
16 - Salt and freshly ground black pepper, to taste

# How To Make It:

01 - Preheat the oven to 350°F. Line a 9x13-inch baking dish with parchment paper or lightly grease it.
02 - In a skillet over medium heat, melt 2 tablespoons butter. Add sliced onions and a pinch of salt; cook, stirring occasionally, until deeply caramelized, about 12–15 minutes. Set aside.
03 - Slice the slider buns horizontally while keeping the bottoms and tops connected. Place the bottom half in the prepared baking dish.
04 - Layer half the cheese slices over the buns. Evenly distribute the roast beef, then top with caramelized onions and remaining cheese. Place the top half of the buns over the cheese.
05 - In a small bowl, mix 2 tablespoons melted butter, Dijon mustard, Worcestershire sauce, and garlic powder. Brush evenly over the tops of the buns. Sprinkle with poppy seeds if desired.
06 - Cover the dish with foil and bake for 15 minutes. Remove foil and bake another 5–7 minutes, until tops are golden and cheese is melted.
07 - While sliders bake, combine beef broth, Worcestershire sauce, soy sauce, and garlic powder in a saucepan. Bring to a simmer and cook for 5 minutes. Adjust seasoning with salt and pepper.
08 - Serve sliders warm with small bowls of au jus for dipping.

# Expert Advice:

01 -
  • Everything tastes better when you can dunk it in rich beefy au jus
  • The poppy seed topping makes your kitchen smell like an actual bakery
02 -
  • Do not skip caramelizing the onions properly, that step is what makes these taste like something from a restaurant
  • Let the sliders rest for just a couple of minutes before cutting, otherwise the cheese will ooze everywhere instead of staying put
03 -
  • Use room temperature cheese slices for faster, more even melting
  • If the bun tops are browning too quickly, tent loosely with foil

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