Looking for the ultimate crowd-pleasing party sandwiches? These Reuben Sliders are warm, cheesy, buttery, and packed with bold flavor. Made with layers of tender corned beef, tangy sauerkraut, melted Swiss cheese, and creamy dressing — all baked inside soft slider buns — they’re the perfect easy appetizer for parties, game days, holidays, or family gatherings.
These mini sandwiches are inspired by the classic deli-style Reuben but made bite-sized, oven-baked, and irresistibly cheesy.
🥣 Ingredients
| Ingredient | Quantity |
|---|---|
| Slider buns (Hawaiian rolls or soft dinner rolls) | 12 rolls |
| Corned beef (thinly sliced) | ¾ pound (340 g) |
| Swiss cheese slices | 8 slices (about 6 oz) |
| Sauerkraut (drained well) | 1 cup |
| Thousand Island dressing | ½ cup |
| Unsalted butter (melted) | 3 tablespoons |
| Dijon mustard | 1 teaspoon |
| Garlic powder | ½ teaspoon |
| Worcestershire sauce | ½ teaspoon |
| Poppy seeds (optional) | 1 teaspoon |
| Fresh parsley (optional garnish) | 1 tablespoon chopped |
🥪 Step-by-Step Instructions
1. Preheat Oven
Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish or line it with parchment paper.
2. Prepare the Rolls
Without separating the rolls individually, slice the entire slab of slider buns in half horizontally. Place the bottom half in the baking dish.
3. Layer the Ingredients
- Spread half of the Thousand Island dressing on the bottom buns.
- Layer half of the Swiss cheese slices evenly.
- Add the corned beef in an even layer.
- Spread the drained sauerkraut evenly (very important to squeeze out extra liquid).
- Add remaining Swiss cheese.
- Spread remaining dressing on the inside of the top buns.
- Place the top buns back over the layered filling.
4. Prepare Butter Topping
In a small bowl, mix:
- Melted butter
- Dijon mustard
- Garlic powder
- Worcestershire sauce
Brush this mixture generously over the tops of the buns. Sprinkle poppy seeds if using.
5. Bake
Cover loosely with foil and bake for 15 minutes. Remove foil and bake an additional 5–7 minutes until the tops are golden brown and the cheese is fully melted.
6. Serve
Let cool for 5 minutes, then slice into individual sliders. Garnish with chopped parsley if desired. Serve warm and gooey.
💡 Pro Tips for Perfect Reuben Sliders
- Drain sauerkraut thoroughly to prevent soggy buns.
- Use freshly sliced deli corned beef for best flavor.
- Toast bottom buns slightly before layering if you prefer extra crispness.
- Add extra cheese for ultra-cheesy sliders.
- Keep warm in a low oven (200°F / 95°C) before serving at parties.
🧀 Why You’ll Love These Party Sliders
- Easy to prepare in under 30 minutes
- Perfect for feeding a crowd
- Cheesy, savory, and tangy flavor balance
- Great make-ahead appetizer
- Ideal for holidays, Super Bowl parties, and potlucks
🔄 Variations
- Use rye slider buns for authentic Reuben flavor.
- Substitute pastrami for a twist.
- Make it spicy by adding sliced jalapeños.
- Use Russian dressing instead of Thousand Island.
🧊 Storage & Reheating
- Store leftovers in an airtight container in refrigerator for up to 3 days.
- Reheat in oven at 325°F (160°C) for 8–10 minutes.
- Avoid microwaving if possible to maintain texture.
