
This giant Keto Air Fryer Cookie is my latest dessert obsession. And once you try it, you will be obsessed too! It comes out so perfectly, soft and tender in the center and slightly crisp around the edges. Golden brown, with plenty of melty chocolate chips, and only 2.7 grams net carbs per serving.
I may never make keto chocolate chip cookies any other way again!

Air fryers bake differently than conventional ovens, so it took me a few times to get this one right. But it was well worth the effort – and even the “fails” were pretty darn delicious. I finally hit on the right approach to get that perfect cookie texture, and I was hooked.
Now I want to try it with other recipes like keto peanut butter cookies. Imagine the possibilities! This is the kind of quick dessert that makes the keto lifestyle feel totally effortless.

Why you will love this air fryer cookie
- So easy! This cookie takes about 12 minutes to make, start to finish. And clean is a breeze!
- Perfect texture: Golden brown, with a soft center and crispy edges, this recipe has the ideal chocolate chip cookie texture.
- Phenomenal flavor: This tastes like the cookies of my childhood!
- Small batch recipe: It makes just enough for 4 delectable servings.
- Excellent macros: With only 6.7 grams total carbs and 4 grams of fiber, it’s the ideal keto dessert.
Ingredient Notes

- Almond flour: Choose a finely ground almond flour for the best consistency.
- Sweetener: I really like using my keto brown sugar replacement for the best flavor.
- Collagen peptides: This is part of what makes the texture so perfect! It gives the cookie added gooeyness. If you don’t have it, replace with 2 more tablespoons of almond flour.
- Chocolate Chips: Any brand of low carb chocolate chips should work in this recipe.
- Butter: Melted butter is ideal for chocolate chip cookies, but you could use coconut oil for a dairy-free version.
- Egg yolk: You need one egg yolk for this recipe. I like just the yolk as it makes it more chewy.
- Pantry staples: Vanilla extract, baking soda, and salt.
Overview: How to Make This Recipe

- Combine the dry ingredients: Whisk together the almond flour, sweetener, collagen, baking soda, and salt.
- Add the wet ingredients: Stir in the butter, egg yolk, and vanilla extract until well combined. Stir in the chocolate chips.
- Form the dough: Roll the dough into a ball, place on parchment paper and flatten it.
- Bake the cookies: Set the air fryer to Bake and cook at 310ºF until puffed and golden brown. Remove and let cool completely.

Tips for Success
Most air fryers have a Bake function, which blows the heat less intensely than the regular air fry function. I recommend using this if you have it. If not, try reducing the heat to 300ºF. Keep in mind that different brands of air fryers will bake differently so check on the cookie while it bakes.
If the collagen you use is sweetened, I recommend cutting the additional sweetener back to 2 tablespoons. I love the Perfect Keto Salted Caramel Collagen in this recipe but it can make it overly sweet if you use the full amount of sweetener.
I used a plain square of parchment paper, but I think air fryer parchment liners would work even better. The hot air caused the edges of my parchment to blow upwards, which made my cookie a bit misshapen. Not a dealbreaker but I’d prefer a perfectly round cookie.
No air fryer? You can place the cookie on the parchment on a cookie sheet and bake in the oven at 325ºF. It will probably take 15 minutes.
Sweetener Options: I recommend an erythritol based sweetener for this recipe, as allulose will cause it to brown very quickly. You can certainly use what you like best but you need to know that your results will differ.
Frequently Asked Questions
The air fryer method is a great way to get cookies with gooey centers and crispy edges. And it works just as well for keto cookies too!
I love my Cosori air fryer! I’ve had three different air fryer models and this is by far my favorite. More even cooking and browning. And it bakes better than other models too!
This air fryer keto cookie recipe has 6.7g of carbs and 4.0g of fiber per serving. That comes to 2.7g net carbs per serving.

Keto Air Fryer Cookie Recipe
Equipment
Ingredients
- 2/3 cup (74.67 g) almond flour
- 3 tbsp (36 g) brown sugar replacement
- 2 tbsp (12.17 g) collagen peptides
- 1/4 tsp baking soda
- Pinch salt
- 3 tbsp (42.61 g) butter, melted
- 1 large egg yolk
- 1/4 tsp vanilla extract
- 2 tbsp (30.43 g) sugar-free chocolate chips
Instructions
- Preheat the air fryer to 310ºF.
- In a medium bowl, whisk together the almond flour, sweetener, collagen, baking soda, and salt.
- Stir in the butter, egg yolk, and vanilla extract until well combined. Stir in the chocolate chips.
- Gather the dough into a ball and place on a square of parchment paper about 8 inches square. Pat into a disc about 5 inches in diameter.
- Set the air fryer to Bake and set the cookie on the air fryer crisper rack. Cook at 310ºF for 8 to 10 minutes, until puffed and golden brown. Remove and let cool completely.
Notes
Nutrition
Nutritional Disclaimer
Please note that I am not a medical or nutritional professional. I am simply recounting and sharing my own experiences on this blog. Nothing I express here should be taken as medical advice and you should consult with your doctor before starting any diet or exercise program. I provide nutritional information for my recipes simply as a courtesy to my readers. It is calculated using MacGourmet software and I remove erythritol from the final carb count and net carb count, as it does not affect my own blood glucose levels. I do my best to be as accurate as possible but you should independently calculate nutritional information on your own before relying on them. I expressly disclaim any and all liability of any kind with respect to any act or omission wholly or in part in reliance on anything contained in this website.
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This is amazing! I did it with stevia and a whole egg for double the recipe. Still turned out great and very chewy thanks to the collagen.
My absolute favorite low car dessert!
I plan on making this but don’t have peptides can I sub whey protein powder???
No, whey is not a good replacement. Please see the blog post as I do discuss what you can do.
what can you substitute for the collagen?
Please read eh blog post as I always try to answer questions like this.
Absolutely the best! And love that it is just right for 1 person. Can’t thank you enough for all the amazing recipes!! You are awesome!
It’s in the air fryer now and smelling delicious !! I’ll admit I ate some raw dough and it was delicious. I did make it into 4 individual cookies because I like crispy edges!
This is an excellent treat! OMG.
I used chopped-up dark chocolate, and I used Splenda & molasses because I didn’t have chocolate chips or brown sweetener. It turned out fabulous & what a great texture!
Taste is excellent and make on repeat often ever since the recipe dropped. I cook it at 300 degrees and 8 minutes because I feel my air fryer runs hot (310 degrees was coming out too dark). I split the recipe in half and then share half of that with my daughter. I have a small air fryer (4 quart) so the whole recipe would not fit because the cookie would be too big. It’s a great way to have a guilt-free and fast dessert with a small scoop of sugar free ice cream. Love this site and it got me through the holidays and staying on track.
Glad you adapted it to suit your equipment! That’s the toughest part about writing baking recipes… you can’t account for other people’s ovens/air/fryers etc.
Oooh this was lovely!! Tasty and chewy 😀 thanks Caroline!!
These are excellent and perfect for me – I live alone. I hope you will come up with more air fryer dessert recipes – scaled down to 4 or less servings. In the meantime, I have made these 3 times and will be making them again!
I’ve got a peanut butter version coming soon!
This cookie was so gooey and decadent! A bit heavy on the butter, but it is absolutely delicious. I have a mini air fryer (2 qt) so I made two cookies with this recipe, I used the air fryer liners which were perfect! I will definitely make again (but maybe a little less butter to cut down on calories)
Glad you enjoyed them!
What can you substitute for collagen peptides?
Please make sure you read the blog post because I always answer questions like this.
This is better than any keto chocolate chip cookie out there. I love it and will make it on rapid repeat. Thank you
I just made this and it is delicious! Definitely A do again as we say in our house. I took it out at 6 or 7 minutes and let it cool completely.
Great to hear!
So, I don’t have a stand alone air fryer, but a countertop oven with an air fryer setting. Maybe a stupid question, but would it work for this recipe?
Love your recipes and thank you for making life bearable for those of us who need GOOD keto recipes!
Your photos of finished product appears to have either flaked salt or flaked sugar sprinkled on top. Please tell me what are the white flakes?
Flaked sea salt! It’s delicious that way.