Roast Beef Sliders
These drippy, cheesy roast beef sliders are the perfect appetizer for entertaining! Made with layers of roast beef, a creamy garlic aioli spread, then brushed with a flavor-packed butter sauce and baked to golden brown perfection. All served with a rich au jus that will blow your guests mind.
Servings: 12 sliders
Calories: 419kcal
Ingredients
- ¼ cup homemade garlic aioli or mayonnaise
- 2 cups caramelized onions optional
Garlic Butter Sauce
- 6 tablespoon unsalted butter melted
- 1 teaspoon Worcestershire sauce
- 1 tablespoon poppy seeds
- 1 tablespoon white sesame seeds
- ½ tablespoon garlic powder
- ½ tablespoon dried minced onion
- ½ teaspoon Kosher salt and freshly cracked black pepper
Roast Beef Sliders
- 12 slider buns sliced in half
- ½ pound deli roast beef thinly sliced
- 12 slices cheese like Provolone, Swiss, Muenster, etc.
- ½ cup mozzarella cheese shredded
Au Jus Sauce
- ½ cup 8 tablespoon butter
- 1 tablespoon Better than Bouillon Beef Base
- 2 cups beef broth
- 2 teaspoon Worcestershire sauce
Instructions
- Preheat your oven to 350ºF (180ºC or Gas 5).
- Make the Garlic Butter Sauce
- Whisk together the butter, worcestershire sauce, poppy seeds, white sesame seeds, garlic powder, minced onion, and salt and pepper together in a small bowl. Set aside for later.
- Make the Sliders
- Place the bottom halves of the slider buns onto your baking dish or rimmed baking sheet. Toast the buns for 2-3 minutes in the preheated oven and remove.
- Spread the aioli or mayonnaise over the bottom halves of the buns, then layer with the roast beef, slices of cheese, shredded mozzarella, and caramelized onions, if using.
- Top with the top halves of the slider buns, then use a pastry brush or silicone brush to slather the melted garlic butter sauce on top of the buns. Don't be stingy!
- Put the roast beef sliders into the preheated oven and bake for up to 15 minutes, until the tops are golden brown and the cheese is nice and melty.
- Cut between each slider with a serving spatula and serve with the rich, beefy au jus.
- Make the Beef Au Jus
- Melt the butter in a saucepan over medium-high heat.
- Whisk in the beef broth, beef base, and worcestershire sauce until well combined.
- Bring to a boil, then reduce to medium-low and simmer for about 15-20 minutes until the au jus reduces by half.
- Pour into a heat-safe bowl for dipping.
Notes
Get the recipe for caramelized onions here!
Get the recipe for the garlic aioli here
Make Ahead: Build the sliders up to two days ahead of time on a rimmed baking sheet or baking dish without the caramelized onions or garlic butter.
Before serving, make the garlic butter and top the sliders with the onions and bake as directed.
Storing: Keep your leftover French Dip sliders in an airtight container for up to 3 days.
Reheating Instructions: Reheat the leftovers in the oven at 375ºF for about 10 minutes so they don't get soggy!
Nutrition
Serving: 1g | Calories: 419kcal | Carbohydrates: 20g | Protein: 19g | Fat: 30g | Saturated Fat: 15g | Polyunsaturated Fat: 13g | Trans Fat: 1g | Cholesterol: 81mg | Sodium: 1031mg | Fiber: 2g | Sugar: 4g