Ingredients
Equipment
Method
Make the au jus
- Preheat the oven to 350°F, then in a saucepan simmer the beef broth, Worcestershire sauce, soy sauce, garlic powder, and onion powder for 10 minutes over medium heat, stirring until combined.
- Keep the au jus warm on the lowest heat setting while you assemble the sliders.
Assemble the sliders
- Place the slider roll bottoms in a greased 9x13 baking dish and layer the deli roast beef and provolone cheese over the rolls, then place the tops back on.
- Whisk together the melted butter, Dijon mustard, Worcestershire sauce, garlic powder, and fresh parsley, then brush generously over the tops of all the sliders.
- Cover the sliders with foil and bake for 15 minutes at 350°F until heated through.
- Remove the foil and bake for 5 minutes at 350°F until the tops are golden and the provolone cheese is fully melted.
- Slice the baked sliders into individual sandwiches and serve immediately with small cups of warm au jus for dipping.
Notes
Pro tip: keep the au jus covered and warm so it stays easy to dip; if it thickens, loosen with a splash of beef broth. Refrigerate leftovers in a sealed container for up to 3 days; reheat covered at 325°F until warmed through. Freezing is not recommended because slider rolls and deli roast beef texture change after thawing. For a dairy-light option, use provolone-style lactose-free cheese to reduce dairy while keeping the melty finish.
