French Dip Sliders with Au Jus (Printable Version)
Tender roast beef and caramelized onions on slider buns, topped with melted provolone and served with rich au jus for dipping.
# What You'll Need:
→ 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 (optional)
→ 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
# Method:
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, keeping the bottoms and tops connected. Place the bottom half in the 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, prepare the au jus. In a saucepan, combine beef broth, Worcestershire sauce, soy sauce, and garlic powder. 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.
# Chef's Tips:
01 -
- They come together faster than you can order delivery but taste like you spent all day cooking
- The combination of warm beef, melty cheese, and that rich dipping sauce creates the kind of comfort food people never forget
02 -
- Don't rush the caramelized onions because that deep sweetness is what makes these taste restaurant-quality
- Let the sliders rest for just 2 minutes after baking so the cheese sets slightly and doesn't slide right off when you cut them
03 -
- Ask your deli to shave the roast beef super thin so it practically melts into the cheese layers
- For extra flavor, add a splash of the beef broth to the caramelized onions during their last minute of cooking