These light and fluffy Keto blueberry muffins are an all-rounder - they're great for breakfast, but also perfect as a nutritious low carb snack. These got the thumbs up from my entire family, including the carb-lovers!
You guys, I'm SO pleased with how these muffins have turned out. They are unbelievably light and fluffy!
These muffins use almond flour instead of wheat flour, which makes them low in carbs. Plus, I'm using erythritol instead of sugar to achieve a pleasant but not overpowering sweetness.
The secret ingredient of this recipe? Sour cream. It's ever-so-slight tanginess makes these muffins taste super fresh - it works exceedingly well with the fruity berry bursts.
It took me 3 tries to finally get them to taste EXACTLY the way I wanted. The secret was to leave out an ingredient as opposed to adding another. Ever heard the wise words "less is more"? It's so true!
In my original recipe I had added butter. Butter is a wonderful thing, and we do eat a fair amount of it in this house. But it did make these low carb blueberry muffins just a bit heavy and cake-y. Leaving out the butter lightened the texture considerably.
My friends, we all thought these muffins taste just like the real thing - airy and scrumptious, with a delightfully moist crumb.
How to make fluffy Keto blueberry muffins
1.) Blend the eggs for a few minutes until they are frothy and have increased in volume. All the lovely air bubbles will make your muffins even lighter in texture!Â
Then add the sour cream, vanilla extract, lemon zest and lemon juice and blend until smooth. Use unwaxed lemons so the peel is edible.
Last, add the dry ingredients - the almond flour, baking powder and erythritol. Continue blending until you have a smooth batter.
TIP: Taste and adjust the sweetener if necessary. I don't have much of a sweet tooth 🙂
2.) Fill the batter into muffin cups - I used paper cups for ease, but you can also use a silicone mould.
Last, add the blueberries, pressing some inside the batter and leaving some on top (simply for looks!). I found this prevents too many blueberries ending up at the bottom of the muffins.
In my first attempt I mixed the blueberries directly into the batter before filling the cups, and they were distributed less evenly.
3.) And after around 25 minutes of baking your low carb blueberry muffins will look like this - lightly browned and totally scrumptious!
My mix made 8 large muffins, but you could stretch it to 9 muffins if you like (as in the image above).
Flavour variations
To add a fruity-zingy note, add 1 tablespoon of grated orange zest.
If you don't have blueberries, replace with any other berries you have available. Raspberries, cranberries and blackberries can be used whole. If you're using strawberries, cut them into smaller pieces first. You could even use dried berries!
Substitutions
You can substitute the sour cream for Greek yoghurt if you like. In this case, also add 2 tablespoon of butter to achieve a similar fat content.
I would not recommend substituting the sour cream with double cream / heavy cream. I think you would be adding too much fat to the recipe, changing the texture of your keto blueberry muffins.
For a dairy free version, sub the sour cream with coconut yoghurt. This is a better choice than coconut cream because it would retain the fresh and light taste. Swap the additional butter required for coconut oil.
I always get asked whether you can use coconut flour instead of almond flour in recipes. You generally can, but you need to reduce the amount to ⅓ - ½ because it absorbs more liquid.
BUT. Coconut flour baked goods tend to be more fragile than their almond flour counterparts and generally require more eggs.
As this recipe only uses 3 large eggs, I don't want you to try and end up with a muffin that falls apart. I have a very popular coconut flour blueberry muffin recipe that works a treat!
How to store Keto blueberry muffins
Wait until your muffins are fully cooled, then store them in a cake or muffin tin with a lid. They are fine on the counter for a couple of days. After that keep them in the fridge for up to 5 days.
Can you freeze them?
Absolutely! Almond flour muffins freeze well. I like to make a double batch and take one out at a time when I want a treat! Simply reheat in the microwave for 20-30 seconds or defrost at room temperature.
Don't miss my other low carb muffins:Â
- Chocolate Chip Almond Flour Muffins
- Grab & Go Low Carb Muffins
- Healthy Pumpkin Muffins with Hazelnuts
- Low Carb Chocolate Banana Muffins
...and last but not least, check out my Keto Blueberry Bread for a more substantial sweet treat containing blueberries!
Tried this recipe? Give it a star rating below!
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Keto Blueberry Muffins
from Sugar Free LondonerNote: The servings slider only changes the first amount in each line and not any subsequent amounts. Please make your own calculations where necessary. ***As an Amazon Associate I earn from qualifying purchases.
Ingredients
- 2 cup / 200g almond flour or ground almonds. NOT super-fine almond flour
- 3 eggs large, or 4 medium
- ½ cup / 120g sour cream
- â…“ cup / 60g granulated erythritol or to taste
- 1 ½ teaspoon baking powder
- 1 tablespoon lemon juice
- lemon zest, grated from 1 lemon
- 1 teaspoon vanilla extract
- ½ cup / 70g blueberries fresh or frozen
Instructions
- Preheat the oven to 180 Celsius / 350 Fahrenheit
- Blend the eggs for a few minutes until they are frothy and have increased in volume.
- Add the wet ingredients - sour cream, lemon juice, zest and vanilla extract - and blend.
- Then add the dry ingredients - almond flour, baking powder, erythritol or your low carb sweetener of choice - and blend until combined.
- Fill the batter into 8 paper muffin cups (or use a silicone muffin tray) and add the blueberries. Push some inside the batter and leave some on top.
- Bake for 25 minutes or until lightly browned.
Notes
Nutrition
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Amanda D.
I just made these for Christmas morning. I was able to make 14 small muffins out of a single batch. I used 4 medium eggs, super fine almond flour (minus the 2 Tbsp) and added an extra 2 Tbsp monkfruit. We didn't have lemons to use the zest, but had lemon juice. The family loved them. The only thing I can think of that would have made these better would be the coarse sugar crystals on top. I usually use Lakanto monkfruit for sweetening, but wonder if you know of any coarse versions out there. I will definitely make these again and try to use the lemon zest as you recommended. Thank you so much for your wonderful recipes.
Katrin Nürnberger
Glad you like the recipe! I have never come across coarser crystals than the regular granulated sweeteners. Let me know if you find any!
Brittany J
These were delicious and so easy to whip up! I think next time I'll try raspberries or small blackberries and double the recipe as these will go fast in my house 🙂
Melissa
These are really good. To serve, I lightly dusted the tops with powdered Swerve and buttered them. 25 seconds in a microwave, and perfection!
Kathy
Your blueberry muffins made with sour cream are the best,so easy
Mary
So moist! Great quick breakfast treat that’s low carb!
Judy Rae
Delicious!!!!! Will serve these again!! Thankyou so much!! Blessings to you
Diana
I'm so happy to find your recipe and will try it for my next breakfast bake, however, is the almond flour you use blanched or un-blanched? Thanks for your reply.
Katrin Nürnberger
I use blanched almond flour. If you use almond flour with skins, it should still work, just taste more "rustic".
Maja
I am making them for a second time! Hubby loves them although no keto and me too. Very handy for a breakfast, so moisture and tender.
Many thanks from Amsterdam!
Katrin Nürnberger
So glad you like the recipe!
Heather
I'm confused. The very first ingredient notes "NOT super-fine almond flour," but when I click on the proivded almond flour link, it says superfine right on the packaging. Is there a reason not to use super-fine? Thanks!
Katrin Nürnberger
Hi, Amazon shows different links depending on where you are in the world. Sorry! I used ground almonds in this recipe, which is coarser than super-fine almond flour. If you want to use super-fine almond flour, just reduce the amount by a little so the muffins aren't too dense. The finer the almond flour, the more liquid it absorbs.
Diane
Just made these omg they are amazing !!! Followed all part from I used Kefir yogurt so so good
Andrea
Can I swap out an egg or two for a table spoon or two of apple sauce? Or will this make it too Fragile?
Thankyou!
Katrin Nürnberger
My feeling is it will probably make it too fragile. There's no gluten in the almond flour to help bind the muffins. You'd have to add something else like xanthan gum or flaxseed to help bind them.
Sophie
My expectations are usually low for low carb recipes, but I’m absolutely blown away by how well these turned out! They rose beautifully and have kept their shape. Moist, filling and delicious. Perfect for breakfast on the go. Thank you!
R
What can you use to substitute the sugar as I prefer not to use the artificial sweetener
Katrin Nürnberger
You could try using inulin. Any other sugar alternative like coconut sugar will add a significant amount of carbs.
Angie
Hello Katlin :
Since I need to watch my
cholesterol as well as my carbs due to pre- diabetes , I was wondering if I could
use low fat yogurt instead of sour cream in the recipe - or would it just not taste that good? Thanks
Katrin Nürnberger
I think a full fat natural yoghurt would work. I would not go for the low fat - it might be too watery.
Angel
I tried this recipe today, my husband loved it! So yummy and moist!! Thank you for the recipe. God bless
Sandra
Tried these today, turned out great. Thanks for the recipe!