French Dip Sliders are small sandwiches filled with roast beef, caramelized onions, and melted Swiss cheese. You dip each slider in warm au jus. They are easy to make and great for a snack or party.
Why make this recipe
This recipe is fast and gives big flavor. The beef and onions taste rich. The melted Swiss cheese and warm au jus make each bite soft and juicy. If you like onion-forward dishes, try a similar idea like cheesy French onion meatballs for more onion and cheese flavor.
How to prepare French Dip Sliders
Prepare the buns and warm the roast beef. Caramelize onions ahead if you can. Layer the beef, onions, and cheese on the buns in a baking dish. Brush the tops with butter mixed with garlic and onion powder. Cover and bake, then uncover to brown the tops. Serve with hot au jus for dipping.
Ingredients:
- slider buns
- roast beef
- caramelized onions
- Swiss cheese
- au jus (for dipping)
- butter
- garlic powder
- onion powder
Steps:
- Preheat the oven to 350°F (175°C).
- Slice the slider buns in half and place the bottoms in a baking dish.
- Layer the roast beef and caramelized onions on the buns.
- Top with Swiss cheese.
- Place the tops of the buns on the sliders.
- In a small bowl, mix melted butter with garlic powder and onion powder, then brush the mixture on top of the sliders.
- Cover with aluminum foil and bake for 15 minutes, then remove the foil and bake for another 5-10 minutes, until the cheese is melted and buns are golden.
- Serve warm with au jus for dipping.
How to serve French Dip Sliders
Serve them warm on a platter. Put bowls of hot au jus on the side for dipping. They go well with fries, a simple salad, or pickles.
How to store French Dip Sliders
Cool sliders to room temp. Store in an airtight container in the fridge for up to 3 days. To reheat, warm in the oven at 300°F (150°C) until hot, or microwave briefly and then toast to crisp the top.
Tips to make French Dip Sliders perfectly
- Use thinly sliced roast beef so it warms quickly.
- Caramelize onions slowly for deep flavor.
- Brush the butter mix on the tops so buns brown nicely.
- Cover while baking so the cheese melts; uncover to brown.
- Warm the au jus so dipping keeps the sliders moist.
Variations (if possible)
- Add a dab of horseradish sauce for heat.
- Use provolone instead of Swiss for a milder taste.
- Add mushrooms with the onions for extra flavor.
- Try small baguette slices instead of slider buns.
FAQ
Q: Can I use cold roast beef from the deli?
A: Yes. Thin deli roast beef works fine. Warm it in the oven so the cheese melts.
Q: How do I make caramelized onions quickly?
A: Cook sliced onions on medium-low with a little oil and salt, stir often. It may take 20–30 minutes to get deep color.
Q: Can I make these ahead and bake later?
A: Yes. Assemble and cover, keep in the fridge for a few hours. Bake when ready, but add a few extra minutes if cold.
Q: Can I freeze the sliders?
A: You can freeze tightly wrapped sliders for up to 1 month. Thaw in the fridge and reheat in the oven.
Q: What if I don’t have au jus?
A: You can use beef broth heated with a little Worcestershire sauce as a quick au jus.
French Dip Sliders
- Total Time: 40
- Yield: 6 servings
- Diet: None
Description
Delicious small sandwiches filled with roast beef, caramelized onions, and Swiss cheese, served with warm au jus for dipping.
Ingredients
- slider buns
- roast beef
- caramelized onions
- Swiss cheese
- au jus (for dipping)
- butter
- garlic powder
- onion powder
Instructions
- Preheat the oven to 350°F (175°C).
- Slice the slider buns in half and place the bottoms in a baking dish.
- Layer the roast beef and caramelized onions on the buns.
- Top with Swiss cheese.
- Place the tops of the buns on the sliders.
- In a small bowl, mix melted butter with garlic powder and onion powder, then brush the mixture on top of the sliders.
- Cover with aluminum foil and bake for 15 minutes, then remove the foil and bake for another 5-10 minutes, until the cheese is melted and buns are golden.
- Serve warm with au jus for dipping.
Notes
Use thinly sliced roast beef for quick warming. Caramelize onions slowly for a deeper flavor. Warm the au jus for the best dipping experience.
- Prep Time: 15
- Cook Time: 25
- Category: Appetizer
- Method: Baking
- Cuisine: American