This keto chicken sandwich layers crispy air fryer fried chicken, mayonnaise, and pickles on a low-carb bun. It has the crunch and familiar fast-food-style flavor of a fried chicken sandwich without a traditional flour coating.

The chicken thigh stays juicy while the almond-flour coating gets crisp in the air fryer. Cook the chicken first, then assemble the sandwich while it is hot so the coating stays crunchy.

This recipe starts with my crispy keto air fryer fried chicken. That recipe contains the complete chicken ingredients, breading method, temperature, and cooking time. Once the chicken is ready, this sandwich takes only a few minutes to assemble. You can also browse the full collection of keto air fryer chicken recipes.

The inspiration is the classic fast-food fried chicken sandwich: a crunchy chicken thigh, a soft bun, creamy mayonnaise, and tangy pickles. This is not meant to be an exact restaurant copycat. It is a straightforward low-carb version you can make with the air fryer.

How to build a keto fried chicken sandwich

I love a chicken sandwich as much as the next person, but there are a few things that separate a good chicken sandwich from one that's just okay.

Start with juicy chicken thighs. The chicken and the almond-flour coating are both seasoned, so the sandwich does not depend on mayonnaise and pickles for all of its flavor.

Protect the crunch. Give the chicken room in the air fryer basket and assemble the sandwich shortly before serving. If the coating is not browning properly, work through the fixes in why your air fryer is not getting food crispy.

Choose the bun that fits your goals. A packaged low-carb hamburger bun makes this feel like a traditional chicken sandwich. You can also use a homemade low-carb bun, a lettuce wrap, or serve the fried chicken without a bun.

The best low-carb bun for a chicken sandwich

There are great keto bun recipes all over the internet, including these low carb air fryer buns, if you're looking for something you can make yourself with "cleaner" and more strict ingredients.

Some other great options are:

Keto Dinner Rolls

Low Carb Hamburger Buns

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But for this sandwich I opted for the pre-made Sola Wheat Hamburger Buns.

At only 6g net carbs, these Sola Buns were perfect for me and the way I choose to do a keto diet.

Remember, everyone's diet looks different and what works for one person might not be the best for another.

Check the nutrition label on the bun you choose because net carbohydrates and serving sizes vary considerably by brand. The sandwich also works without a bun if that better matches the way you eat.

How to keep a keto chicken sandwich crispy

Let the freshly cooked chicken rest briefly on a wire rack or plate instead of sealing it inside a covered container. Add the mayonnaise and pickles to the bun, then place the hot chicken on top immediately before serving. Building the sandwich too early traps steam against the coating and softens it.

Keto chicken sandwich toppings

Mayonnaise and dill pickles keep the sandwich simple. For more heat, mix a little hot sauce into the mayonnaise. Sliced jalapeños, shredded lettuce, a slice of cheese, or a spoonful of sugar-free barbecue sauce can also work. Check packaged sauces and pickles if you are tracking carbohydrates closely.

Can you make it ahead?

Store the cooked chicken separately from the bun and toppings. Reheat the chicken in the air fryer until hot and crisp, then assemble the sandwich. The air fryer reheating chart gives practical starting points, but the thickness of the chicken will determine the final time.

More low-carb air fryer recipes

Try the keto dill pickle wings, keto air fryer chicken Parmesan, or air fryer jicama fries next.

For more ideas like this one, browse our collection of 20 keto air fryer recipes for easy low-carb meals.