French Dip Sliders (Printable)

Mini sandwiches with roast beef, melted cheese, and onions served with warm dipping sauce.

# What You Need:

→ For the Sliders

01 - 12 slider buns or Hawaiian rolls
02 - 1 pound 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

# How-To Steps:

01 - Preheat oven to 350°F. Line a 9x13-inch baking dish with parchment paper or grease lightly.
02 - Melt 2 tablespoons butter in a skillet over medium heat. Add sliced onions and pinch of salt. Cook, stirring occasionally, until deeply caramelized, about 12-15 minutes. Set aside.
03 - Slice slider buns horizontally, keeping bottoms and tops connected. Place bottom half in the prepared baking dish.
04 - Layer half the cheese slices over buns. Distribute roast beef evenly, top with caramelized onions, then remaining cheese. Place bun tops over filling.
05 - In a small bowl, mix melted butter, Dijon mustard, Worcestershire sauce, and garlic powder. Brush evenly over bun tops. Sprinkle with poppy seeds if desired.
06 - Cover 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 simmer and cook for 5 minutes. Season with salt and pepper to taste.
08 - Serve sliders warm with small bowls of au jus for dipping.

# Helpful Tips:

01 -
  • These sliders hit that perfect sweet spot between fancy appetizer and comfort food classics
  • The make-ahead potential means you can actually enjoy your own party instead of being stuck in the kitchen
02 -
  • The difference between okay sliders and great sliders comes down to not rushing the onions—really let them turn that deep amber color
  • Letting the assembled sliders rest for about 5 minutes after baking helps everything set and makes them easier to cut cleanly
03 -
  • Use a serrated knife to slice through the entire batch of buns at once—keeps everything even and prevents squishing
  • If the bottoms get soggy, place a wire rack under your baking dish for better air circulation while baking

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