Allow me to introduce you to one of my all-time favorite creations. I am passionate about Reubens, and this easy to make Keto Reuben Sandwich is my idea of perfection. When you combine a crispy buttery chaffle, melted cheese, corned beef, sauerkraut, and a delicious sauce, you have got mealtime bliss.
Since going low carb, sandwiches are among the things that I miss the most. That is, I missed them until I started making chaffles.
I am in love with this Keto Reuben Sandwich so much! I would have it on the menu every week if I could.
This is a big sandwich. I have never been able to eat a whole one. I save it and reheat the uneaten half in my air fryer for another meal.
If you are looking for more chaffle inspiration, try my Blueberry Chaffles, Keto Avocado Toast and Peanut Butter Chaffles. And if you are new to chaffles, check out my guide on How to Make Chaffles.
Tips & Tricks
- I recommend using a skewer or toothpicks to secure the sandwich when you are cooking it.
- Alternatively, you can butter the outside of the chaffles and cook the sandwiches in the air fryer for about 5 minutes at 400 degrees.
- If you don't want to make chaffles, cloud bread is also a great option.
How to Make a Keto Reuben Sandwich
Frequently Asked Questions
Sauerkraut isn’t my thing. What can I use?
I would suggest using a good keto-friendly coleslaw. Only then, technically your sandwich will not be a Reuben. It's now a Rachel!
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What kind of ketchup can I use on keto?
I often make my own keto ketchup. When I don't have time for that, this is the brand I use.
Keto Reuben
Ingredients
Sauce
- 3 tablespoons mayonnaise
- 1 tablespoons keto ketchup or other keto-friendly ketchup
- 2 tablespoons minced dill pickles
Sandwich
- 4 chaffles made according to this recipe, add 1 teaspoon crushed caraway seeds
- ¼ pound corned beef sliced thin
- 1 cup sauerkraut
- 2 ounces Swiss cheese
- 2 tablespoons butter
Instructions
- In a small bowl, combine mayonnaise, ketchup, and dill pickles.
- Spread the mixture over the chaffles.
- Divide the corned beef between two of the chaffles.
- Top with half of the cheese and the sauerkraut.
- Place the remaining chaffles on top of the sauerkraut, sauce side down.
- Melt butter in a large skillet to medium heat.
- Cook the sandwiches for 4 minutes, and flip. Cook for another 4 minutes, or until the cheese melts.
Wendy Polisi says
Thanks for letting me know! It is fixed now.
Rhonda says
This is so delicious. Thank you for sharing
Wendy Polisi says
Thanks so much!
Jan says
Made this yesterday. Followed instructions explicitly. Even made the ketchup and my own mayonnaise. It was GREAT! Even my husband loved it. I'm so grateful for the opportunity to enjoy Reubens again! THANKS!
Linda says
This sandwich looks amazing> Rubens are one of my very favorite sandwiches and I thought it was over and gone until I saw this! Cant wait to try it and thank you for posting it!
Wendy Polisi says
Thanks so much! I hope that you enjoy it as much as we do. This is one I make again and again.
Stacy says
I never comment on the recipes I try on here but I absolutely loved this Rueben. I have been doing low carb for 6 months now and had been craving one and this hit the spot! Thank you so much for sharing this recipe. I will be making again
P" says
This is the best keto reuben sandwich I have found. My whole family lo es this. I make this at least once a month. Love love love the chaffle with caraway seeds, tastes exactly like rye bread....so yummy! Thank you for sharing this recipe.
Wendy Polisi says
I am so glad you enjoyed it! It is a favorite of mine too.
Debbie says
Tried the Rueben this evening, it has always been my favorite sandwiches. My sauce didn't turn out as good as I hoped however, I enjoyed every bite.
Karina king says
The the nutritional value for the two servings or one serving?
Karina says
Is the serving size 2 Chaffles or the 4 ?
Is it one serving or 2 ? For the nutritional value
Nancy says
I definitely have to try this!!! Every recipe of yours that I have tried has been a hit...I apologize for not leaving comments on a regular basis (and for that reason I am leaving this a 5-star review even though I have not tried this!!) I am thinking of possibly adding some caraway seeds to the chaffles for more of a rye bread effect...what do you think? 🙂
Wendy Polisi says
I am so glad you are enjoying everything!
I do add crushed caraway seeds to the chaffles. So good!
Jim says
Just a FYI. Try using shredded Swiss instead of Mozzarella. With the caraway seeds and the swiss in the chaffle it is really good!
Katy Herrig says
Just to be sure, you nutrition numbers in the recipe are based on eating both of the chaffles that this makes, correct?
Connie McKim says
I don't have a waffle maker and wondered IF there is any other method to make the chaffles?
I made your delicious chicken pot pie and the crust was amazing. .. Thank you for all the wonderful recipes you share. .I've struggled for years with weight. In January 2021 I started Keto and it's working for me. AND I credit your recipes for enabling me to lose 30 lbs at the age of 67
Thank you!
Marcia Montgomery says
Omg ..my first chaffle and so happy I chose this recipe! Just delicious! So satisfying. Felt like the first "sandwich" I've had in a month. Feeling so much better about having to go Keto due to a medical condition. Thanks!
Blue Ridge Lady says
Incredible yum factor! CarbManager has it calculating as 6.6 carbs with my ingredients, which did not include sauerkraut. Worth every carb and every bite!! Amazing!