Slow-cooked perfection awaits with these Crockpot Reuben Sandwiches that are bound to impress anyone lucky enough to join you for dinner. The combination of tender corned beef, melty Swiss cheese, and tangy coleslaw nestled between buttery, crisp slices of marble rye is nothing short of heavenly. There’s something so comforting about the flavors of a classic Reuben, enhanced by the slow cooking method that brings out every rich bite of corned beef.

Table of Contents

Why You’ll Love This Recipe
Ingredients You’ll Need
How to Make Crockpot Reuben Sandwiches
Storing & Reheating
Chef’s Helpful Tips
Recipe FAQs
Crockpot Reuben Sandwiches

Each ingredient plays its role in this delicious narrative. Imagine the savory brisket infused with aromatic spices, paired seamlessly with zesty Russian dressing and fresh coleslaw. It’s like a party on a plate! Plus, there’s minimal prep while maximizing flavor—what could be better? These sandwiches are perfect for a cozy get-together, a game day feast, or simply when you crave a comforting meal without the fuss. With just a little time in your trusty crockpot, you’ll bring home-cooked authenticity to your table. Let’s dive into this delightful recipe!

Why You’ll Love This Recipe

Simple & Quick: With just 15 minutes of prep and 8 hours in the crockpot, it’s almost effortless.
Irresistible Flavor: The blend of spices gives the corned beef depth, while the creamy dressing adds tang.
Eye-Catching Appeal: The visuals of cheesy, meaty goodness tucked between toasted rye are Instagram-worthy.
Flexible Serving: Perfect for lunch, dinner, or game day snacks; they’ll disappear in no time!
Diet-Friendly Options: You can make it gluten-free by using gluten-free bread and adjusting the dressing.

Ingredients You’ll Need

4 lbs. corned beef brisket: The star of the sandwich, providing rich and tender meat. Look for good quality brisket with some marbling.
Aluminum foil: Essential for tightly wrapping the brisket to keep in all those flavorful juices.
Pickling spice packet: Usually included with corned beef, this spice mix adds warmth and involves flavors like mustard seed and bay leaf.
2 tbsp. brown sugar: A touch of sweetness to balance the savory spices; light or dark brown sugar works well here.
1/2 tsp. coarse black pepper: For seasoning; you can experiment with fresh-ground if you prefer a stronger kick.
1/2 tsp. ground coriander: This flavor brightens up the brisket. If you don’t have any, cumin could work as a substitute.
1/2 tsp. garlic powder: Provides savory depth; fresh garlic works too, but use it sparingly.
1/2 tsp. paprika: Adds a slight smokiness; Spanish paprika can bring even more flavor.
1/4 tsp. onion powder: For an added hint of sweetness.
2 tsp. hickory liquid smoke: This ingredient brings a touch of barbecue flavor. Use cautiously; it’s potent!
4 cups chopped cabbage: A fresh base for your coleslaw; you can also use pre-packaged coleslaw mix to save time.
1 cup shredded carrots: Add sweetness and a pop of color.
1 cup shredded white onion: For crunch and zest; feel free to substitute red onion if you prefer.
1 cup mayo: For a creamy dressing base.
1 tsp. Dijon mustard: Adds a sharpness to the dressing.
1 tsp. creamed horseradish: Infuses a delightful kick; adjust to taste.
1 tsp. sugar: A touch of sweetness in the dressing to balance flavors.
2 tsp. apple cider vinegar: For a tangy finish.
Couple grinds of coarse black pepper: To taste in the coleslaw.
1/2 tsp. poppy seeds: Optional, but adds a nice crunch and flavor to the dressing.
1/4 cup ketchup: For sweetness and body in the dressing.
2 tsp. onion, finely diced: For a punch of freshness.
Splash of Worcestershire sauce: Enhances the overall flavor of the dressing; made with aged vinegar for depth.
4 tbsp. butter: For browning the bread, bringing toasty richness.
12 marble rye slices: A fun twist on the classic flavor; consider using regular rye or even sourdough if you prefer.
8 slices Swiss cheese: Melts beautifully and pairs perfectly with the brisket.
Toothpicks: To hold the sandwiches together; optional, but they’re handy.

How to Make Crockpot Reuben Sandwiches

Prepare the Rub: In a small bowl, mix together the pickling spice (usually included with the corned beef), 2 tbsp. brown sugar, 1/2 tsp. coarse black pepper, 1/2 tsp. ground coriander, 1/2 tsp. garlic powder, 1/2 tsp. paprika, and 1/4 tsp. onion powder until well combined. This rub will add depth and flavor to the brisket.

Wrap the Brisket: Take your 4 lbs. corned beef brisket and lay it on a large sheet of aluminum foil. Generously spread the rub mixture on all sides of the beef. Once coated, tightly wrap the brisket in the foil, securing it well, and wrap it again three times more for good measure.

Cook in the Slow Cooker: Place the wrapped corned beef in your slow cooker. No water is needed— the meat will release its juices as it cooks. Cover the slow cooker with the lid, and set it to cook on LOW for about 7 to 8 hours. Avoid opening the lid during this time to keep the heat in.

Rest the Corned Beef: After the cooking time, carefully take out the wrapped corned beef. Allow it to rest in the foil on a cutting board for about 20 minutes. This step helps the juices redistribute, making the meat tenderer.

Make the Coleslaw Dressing: In a mixing bowl, combine 1 cup mayo, 1 tsp. Dijon mustard, 1 tsp. creamed horseradish, 1 tsp. sugar, 2 tsp. apple cider vinegar, a couple grinds of coarse black pepper, and 1/2 tsp. poppy seeds. Adjust the seasoning to taste for your desired creaminess and tang.

Prepare the Russian Dressing: Combine 1 cup mayo with 1/4 cup ketchup, 2 tsp. finely diced onion, and a splash of Worcestershire sauce in a separate bowl. This zesty dressing adds another layer of flavor to your sandwich.

Slice the Brisket: Carefully unwrap the corned beef and discard the juices. Use a sharp knife to slice the brisket against the grain (this ensures tenderness) for your sandwiches.

Brown the Bread: Melt 4 tbsp. butter in a skillet over medium heat. Spread butter on one side of the 12 marble rye slices, then place the bread butter-side down in the skillet. Cook until golden brown and crisp.

Assemble the Sandwiches: Start with the bottom slice of browned bread. Spread a generous amount of the Russian dressing first. Layer on the sliced corned beef, followed by a slice of Swiss cheese. Next, heap on a handful of coleslaw. Top it all off with the second slice of bread. Insert a toothpick through the center for extra stability if desired.

Enjoy Your Creation: Cut the sandwich in half for easier handling. There you have it! Enjoy your homemade Crockpot Reuben Sandwiches, ideal for sharing or indulging all on your own.

Storing & Reheating

Once your superb sandwiches are made, if you have any leftovers, they can be stored at room temperature for about an hour if it’s cool outside. For longer freshness, refrigerate the sandwiches in an airtight container for up to 3 days. If you want to freeze your sandwiches, wrap them tightly in foil and place them in a freezer-safe bag for up to 3 months. To reheat, simply place a sandwich on a skillet over medium heat or in a preheated oven at 350°F for about 10 minutes until warmed through and the cheese is melted. Note that freezing may affect the texture slightly, but you can refresh it with a little added mayonnaise or dressing when reheating!

Chef’s Helpful Tips

Don’t Skip the Resting: Allowing the brisket to rest after cooking is imperative for juiciness—don’t rush this step!
Temperature Check: Make sure your corned beef is at least 190°F for optimal tenderness.
Keep the Crunch: Dress only the amount of coleslaw you’ll use right away to maintain its crisp texture. If prepping in advance, mix the dressing separately until you’re ready to enjoy!
Grill for Extra Flavor: If you have a chance, give the assembled sandwich a quick toast on a grill for a smokier flavor.
Experiment with Cheese: While Swiss is traditional, feel free to swap in Gruyère or gouda for a unique twist.

The beauty of these Crockpot Reuben Sandwiches lies in their comforting flavors and satisfying textures. Whether you’re feeding a crowd or enjoying a quiet night in, the simplicity and warmth of this dish transform any meal into a memorable experience. Don’t hesitate to adapt the recipe to make it your own, perhaps try adding a slice of tomato or swapping the coleslaw for some spicy kimchi for a kick. So gather your ingredients and indulge in one of the best sandwiches you’ll make all year—savor every bite!

Recipe FAQs

Can I use leftover corned beef for this recipe?

Absolutely! If you have leftover corned beef from St. Patrick’s Day or any other meal, just slice it up and assemble your sandwiches without the need for slow cooking. This shortcut still delivers fabulous, hearty sandwiches.

How can I make this recipe healthier?

To lighten things up, consider using low-fat mayo and less butter. You can also pile in more veggies in the coleslaw and replace some of the mayo with Greek yogurt for a healthier dressing option.

What can I substitute for marble rye?

If you can’t find marble rye, regular rye bread works wonderfully. For a gluten-free option, look for gluten-free bread alternatives or wraps that suit your dietary needs.

Can I prepare the coleslaw dressing in advance?

Certainly! You can mix the coleslaw dressing a day ahead and keep it in the fridge. Just ensure to add it to the cabbage and carrots right before serving to keep everything fresh and crisp.