How do you make banana bread without any of the high-carb bananas? Pure keto magic! One bite and you will swear you are eating the real deal. It tastes just like it, smells just like it, and has the same wonderful moist texture.
It took me a while to perfect this Keto Banana Bread, but it was definitely worth the effort. After all, banana bread is very possibly the most comforting of baked goods. Who among us hasn’t had a grandmother or caring friend make us a loaf as a sign of their deepest affection?
Making this low carb sweet bread is definitely an act of love. All the more so because it won’t raise the blood sugar of you or your loved ones. Along with recipes like keto chocolate chip cookies and sugar free hot chocolate mix, baking up some Keto Banana Bread shows just how wonderful and caring you are.
Even if you plan to keep it all for yourself. After all, self-care is extremely important!
What readers are saying
“Made this yesterday and, WOW, I love it!! I followed the recipe exactly and am so happy with the flavor and texture, especially the outside has a bit of a sweeter taste and crust. Thanks, Carolyn!” — Karen
Why You Will Love This Recipe
- Updated recipe! I created a low carb banana bread recipe back in 2014. But this updated version is easier to make and even lower in carbs.
- Classic flavor: A little banana extract gives this bread just the right flavor.
- Perfect texture: I have a special trick that adds the same moisture and tenderness as real bananas!
- Make ahead recipe: You can make a loaf or two and freeze for later.
- Keto and gluten-free: Made with almond flour and coconut flour, it’s grain-free and keto-friendly.
Ingredient Notes
- Chia seed: This is the magic ingredient that gives the bread the ideal banana bread texture.
- Keto flours: I use a combination of almond flour and coconut flour to keep the carbs low.
- Sweetener: I recommend a brown sugar replacement for classic banana bread flavor. See the Tips for Success for more information about sweeteners.
- Protein powder: The addition of a dry protein like whey protein powder helps keto baked goods rise properly and hold their shape. You can also use egg white protein powder.
- Banana flavor: I recommend a natural banana extract rather than an imitation flavoring.
- Chocolate chips: I love the addition of keto chocolate chips in my banana bread but you can also mix in chopped walnuts, shredded coconut or blueberries.
- Pantry staples: Baking powder, vanilla extract and salt.
How to Make Keto Banana Bread
- Prepare the chia seeds: Grind in a coffee grinder or food processor, then stir in the water.
- Combine the dry ingredients: Whisk together the almond flour, sweetener, protein powder, coconut flour, baking powder and salt.
- Add the wet ingredients: Stir in the eggs, melted butter, chia seed mixture, banana extract, and vanilla extract. Stir in the water to thin the mixture to a scoopable consistency.
- Add the mix-ins: Stir in the chocolate chips or nuts, if using. Reserve some for the top of the bread.
- Bake the bread: Spread the batter in a loaf pan and bake until golden brown and just firm to the touch. Let cool in the pan.
Tips for Success
There really is no good substitute for the chia seed. You can omit it but you will need to add additional liquid to the batter and the texture of the bread won’t be the same.
How much additional liquid you need depends on the chia gel, as well as other ingredients like the coconut flour. If the batter is overly thick, add water a little at a time until it has a scoopable consistency. It should not be pourable.
Brands of banana extract differ in strength. I like the Native Vanilla brand and find 1 1/2 teaspoons to be right for a good banana flavor. Some baking emulsions or artificial flavors may be stronger, so stick with about 1 teaspoon.
Sweetener Options:
This keto banana bread recipe works best with erythritol-based sweeteners. Allulose tends to brown very quickly and cause the parts of the bread against the hot pan to become very dark and taste burnt. If you can’t tolerate erythritol, you could try this in a silicone loaf pan, but the baking time may change.
You could also try a mix of sweeteners, such as erythritol and some liquid stevia or monk fruit extract. That can help reduce the erythritol and minimize any aftertaste you may experience from either sweetener.
Keto Banana Bread Recipe
Equipment
Ingredients
- 1/4 cup (42.5 g) chia seed
- 2/3 cup (157.73 g) water
- 1 3/4 cups (175 g) almond flour
- 2/3 cup (121.33 g) Swerve Sweetener
- 1/3 cup (36 g) unflavoured whey protein powder
- 1/4 cup (27 g) coconut flour
- 2 tsp baking powder
- 1/2 tsp salt
- 3 large eggs
- 1/2 cup (113.5 g) melted butter
- 1 1/2 tsp banana extract, (imitation would also be fine)
- 1/2 tsp vanilla extract
- 1/2 cup (118.29 g) water
- 1/3 cup (60 g) dark chocolate chips, sugar-free
Instructions
Banana Bread:
- Preheat oven to 350F and grease an 8×4 inch loaf pan very well (you can also use 9×5 but your bread will bake faster). If your pan isn't very non-stick, you may want to line the pan with parchment, and grease the parchment.
- Grind the chia seed in a coffee grinder or food processor. Transfer to a bowl and stir in the water. Set aside.
- In a large bowl, whisk together the almond flour, sweetener, protein powder, coconut flour, baking powder and salt.
- Stir in the eggs, melted butter, chia seed mixture, banana extract, and vanilla extract, until thoroughly combined. Stir in the water to thin the mixture to a scoopable consistency. If it's still very thick, add more water, 1 tbsp at a time.
- Stir in the chocolate chips, if using, saving a few for the top of the bread. Spread the batter in the prepared pan and sprinkle the top with the remaining chocolate chips.
- Bake 60 to 75 minutes or until golden brown and the top is just firm to the touch. Let cool in pan 20 minutes, then run a sharp knife around the edges to loosen. Continue to let it sit in the pan until cool, about 20 minutes more.
Video
Notes
Nutrition
Frequently Asked Questions
While real bananas are not recommended on keto, you can still enjoy some treats and baked goods that have the same flavor. This keto banana bread recipe uses chia seed for texture and banana extract for flavor. And many readers swear you can’t tell it’s not the real thing.
Conventional banana bread recipes can have upwards of 40g per slice. But this keto banana bread has only 7g of carbs and 4.5g of fiber per serving. That comes to 3.5g net carbs per slice.
This delicious bread freezes very well. Just wrap it tightly in plastic wrap or aluminum foil . You can also leave it on the counter, covered or wrapped up, for 3 days. Refrigerate if you think it will be around longer.
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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Made this basic cake yesterday (minus the frosting) and had to make a few changes to it because I didn’t have banana extract, unsweetened almond milk or unflavored whey protein. I had coconut extract, unsweetened coconut milk and vanilla flavored whey protein powder (Body By Vi) and so I used them, also omitted the vanilla extract.
The cake is super moist and dense thanks to the ground chia seeds, which I did have to use close to the full cup of water to get the mashed banana consistency. I had some fresh strawberries that I had been marinating in a sugar substitute and it made a little syrup with the strawberries and I made some whipped cream all to put on top of a slice of cake. It was so delicious, very tropical.
I just love your recipes and appreciate, very much, all of the work you put into perfecting them. And the stories you include with them are so entertaining.
Thanks for mentioning that you used your coffee grinder to grind the chia seeds. I had one in the very back of a cabinet that I had completely forgotten about so I dug it out and it worked perfectly. It’ll go back into the cabinet but up front rather way in the back. I’ll have to try it to make the powdered sweetener (from the granular form) for the frostings.
Your changes sound good too!
Fantastic! Yes, the best banana bread recipe ever. Texture, flavor were perfect. I added 1 cup chopped walnuts & will use 1 cup water for the chia seeds next time. Mine was also like a paste with 1/2 cup water, but it still turned out utterly delicious. Thank you for returning the yummy aroma of banana bread baking to my kitchen.
So glad to hear it!
it looks great!
I lot of your baking recipes call for whey protein. Is there a good substitute for it?
Hemp protein or powdered egg white. It’s not about a dietary supplement, it’s about getting a dry protein to replace the gluten (which is a protein). It helps it rise and hold its shape.
Would vital wheat gluten work as a substitute for the whey protein?
Sorry I really cannot guide you as I haven’t tried it.
This looks sooooooo yummy! What size loaf pan did you use? Can’t wait to give it a try! 🙂
The standard size 9 x 5 inches.
Is the amount of water in the recipe correct? It made a really thick paste for me, not really a jell. It’s baking now- can’t wait to taste it! Thanks for sharing your creations 🙂
I believe it is, although it’s possible I wrote it down wrong. It should have been the consistency of mashed bananas. Let me know if it doesn’t turn out properly…I will test it again. My kids won’t complain!
Why are there no bananas in the banana bread?
Because it’s keto and bananas aren’t a good choice.
So so killer! Love this one, my friend!
Thanks, lovely lady!
Makes sense. Sorry about that.
No worries. If you are looking to sub in sugar, you can put in about the same amount I use Swerve.
Why dos.t any recipe have the amount of sugar?
Because I don’t use sugar.
So great to finally meet you in person at BlogHer Food Carolyn!! Hope we get to see each other again soon – wish I could have stayed longer. Love this banana bread with chia seeds, almond flour and coconut flour.
You too, Jeanette!
I would like to see your birth certificate, because I’m pretty sure you were built in some bio-technical lab where they make bionic superwomen.
I love reading a recipe and realizing that I have every ingredient on hand. When that happens, I know it’s meant to be. It looks like I have some banana bread to bake!
Okay, at first I thought this had to be spam, with the birth certificate comment. Thanks for the giggle, Jasmine!
This looks absolutely fantastic! That frosting is amazing!
Can anything be substituted for the whey protein powder
Please read the tips section, you will see I give alternatives.
It doesn’t get much better than banana bread straight from the oven! Love this caramel frosting!
I’m making this today! My hubby is insane for banana bread. BTW, we are also crazy about your delicious chia seed brownies!
Thanks, Lin!
I can almost smell the goodness through the computer!
I swear May is the new December. Deanna from Teaspoon of Spice Blog and I were just talking last week about how crazy busy May has all of a sudden become.
This recipe is genius by the way. Can’t wait to try the chia concoction.
Question — and we can discuss this in VT this weekend 🙂 but how does your family do with Swerve? I love it and think it’s genius. I’m just hesitant with my family to see if they can taste the difference.
My kids are great with it. My little one tends not to like it in frostings that don’t contain chocolate, for some reason, but the other two are fine with it in anything. And the little ones likes it in almost everything else.
Can I use 1/2 heavy cream and 1/2 water as a sub for almond milk?
Yup, that’s perfect.
Can I use heavy whipping cream as a substitute for all of the water and almond milk?
It will make the batter much too thick. You can water it down, though.
Where is almond milk in the ingredients list?