Here's a tasty low-carb blueberry mug cake that bakes up in minutes. The recipe makes two servings, so eat one now and save the other for later.
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One of the recipes I made this weekend was a disaster, so I quickly had to think of something else. Using my birthday mug cake recipe as a base, I came up with this keto blueberry mug cake recipe.
It's a nice treat that's ready in minutes!
Why you'll love it
Mug cakes and muffins are perfect for a quick snack or breakfast.
My youngest daughter loves blueberries, so I had some fresh berries in the refrigerator.
My favorite recipe for using the tons of blueberries we pick over the summer is a cobbler. I also like making a syrup to pour over pancakes and mix into plain yogurt.
Now, I have a quick and easy low-carb blueberry mug cake recipe that I can throw together. It will be a yummy treat in the morning on the weekends or a snack after work.
This tasty mug cake recipe could also be made in larger batches and baked in the ramekins. It should only take 10-15 minutes to bake in the oven.
Mug cakes are pretty convenient and are perfect for college kids living in the dorm. Much healthier than the microwave popcorn we used to snack on.
Although I could make up a mug cake in the microwave at work, I'd probably just make it at home first and heat it up in the toaster. The size of each blueberry mug cake is perfect for toasting.
This is the perfect recipe to satisfy your sweet tooth.
Ingredients
There are only a few simple ingredients in this keto blueberry mug cake. If you have ever made a low-carb cake before, you probably already have all the ingredients that you need.
Flour
You will need both almond flour and coconut flour. In order to keep the carbs low, I do not recommend using Bob's Red Mill gluten-free all-purpose flour. It has too many carbs.
Blueberries
Use either fresh or frozen blueberries - they both work perfectly in this recipe. You only need a small handful.
Baking ingredients
You will also need basic baking ingredients such as salt, baking powder, vanilla extract, and lemon extract.
Wet ingredients
You will also use coconut oil as the fat, heavy cream for richness and flavor, and an egg to hold it all together.
Sweetener
Any granulated or liquid low-carb sugar substitute will work perfectly in this blueberry muffin mug cake.
Please note: Check out the recipe card at the bottom for a full list of ingredients used to make this low-carb recipe.
Tips
- Top with whipped cream. This enhances the blueberry mug cake after it cooks.
- Add blueberries on top. Save some fresh blueberries and add them on top of the cake after it bakes.
- Spread on some cream cheese frosting. If you want to make this taste like a real cake, make a keto cream cheese frosting and spread it on top.
Instructions
This blueberry keto mug cake is so easy to make that even kids can make it.
Mix the dry ingredients
In a small bowl, mix the almond flour, coconut flour, baking powder, and salt, and then add the blueberries.
Combine wet ingredients
In a small microwave-safe bowl, melt the coconut oil. Then, mix in the heavy cream, egg, sweetener, and extracts.
Mix everything together
Mix the dry ingredients into the liquid ones. Add the batter to a microwave-safe mug or two ramekins.
Cook the blueberry mug cake
Microwave on high from 1 ½ minute to 2 minutes or until cake is no longer wet. It took about 2 minutes to bake in my 900-watt microwave.
️ Serving suggestions
This dessert cuisine tastes perfect for breakfast, brunch, or as a snack when you are feeling kind of hungry.
Serve this keto blueberry muffin with a scoop of low-carb ice cream as a delicious treat.
Top with lemon zest and serve it with a shortbread cookie if you are craving even more sweets.
Serve this delicious mug cake with bulletproof coffee or another slice of keto fluffy vanilla cake.
Variations
Change it up and use sugar-free chocolate chips instead of blueberries. Or, drizzle some sugar-free maple syrup on top.
This muffin in a mug is a quick and easy recipe for anyone to make when they are crunched on time.
FAQs
Before we get to the printable recipe card, here are some questions people often ask about how to make it.
Yes, you can certainly use salted butter instead of coconut oil. Add the melted butter to the batter just like you would the coconut oil. If you use salted butter, use less salt in the recipe.
There are 5 grams net carbs in one blueberry mug cake.
I prefer to use a granulated sweetener like Swerve. A liquid sweetener will work just as well. This keto sweetener guide will explain the differences between them and how to pick the best one.
Related Recipes
Looking for other keto mug cake recipes to make for parties or for the rest of the year? Be sure to check out these gluten-free keto desserts. They are some of my favorites!
- Coconut Flour Paleo Pumpkin Mug Cake is a fall favorite that you can make all year long.
- Gluten-Free Birthday Cake In A Mug is enough for one person. It is super cute and tastes way too good to be low in carbs.
- Keto Lemon Mug Cake is a bright and citrusy cake that will wake up your taste buds and leave you feeling refreshed.
- One Minute Brownie In A Mug is perfect for anyone that is craving chocolate! It's ready in just a few minutes.
- Keto Paleo Strawberry Mug Cake has two layers and the best and sweetest flavors that remind you of summertime.
Follow us on FACEBOOK, PINTEREST, and INSTAGRAM for even more tasty keto-friendly recipes!
Recipe
Blueberry Mug Cake
Video
Ingredients
- 2 tablespoons almond flour
- 1 tablespoon coconut flour
- ¼ teaspoon baking powder
- dash salt
- 2 tablespoons fresh or frozen blueberries
- 1 tablespoon coconut oil melted
- 2 tablespoons plus 1 teaspoon heavy cream
- 1 egg
- 1 tablespoon low carb sugar substitute
- ¼ teaspoon vanilla extract
- ¼ teaspoon lemon extract
Instructions
- Mix together almond flour, coconut flour, baking powder, and salt in small bowl. Stir in blueberries. Set aside.
- Melt coconut oil in small microwaveable bowl. Stir in heavy cream, egg, sweetener, and extracts into melted coconut.
- Beat dry ingredients into liquid ingredients with fork until well combined.
- Divide batter between two lightly buttered ramekins.
- Microwave on high from 1 ½ minutes to 2 minutes or until cake is no longer wet. It took about 2 minutes to bake in my 900 watt microwave.
- Serve in ramekins or remove to serve.
Notes
Low Carb Sweeteners | Keto Sweetener Conversion Chart
Nutrition
Additional Info
Notes on Nutritional Information
Nutritional information for the recipe is provided as a courtesy and is approximate only. We cannot guarantee the accuracy of the nutritional information given for any recipe on this site. Erythritol carbs are not included in carb counts as it has been shown not to impact blood sugar. Net carbs are the total carbs minus fiber.
Copyright
© LowCarbYum.com - Unauthorized use of this material without written permission is strictly prohibited unless for personal offline purposes. Single photos may be used, provided that full credit is given to LowCarbYum.com along with a link back to the original content.
First published on March 21, 2016. Post updated on May 3, 2022, with additional recipe information and new photos.
Gau
Excellent!!! So much better than several other recipes I tried 🙂
Emilie S
Omg so delicious!! I added some cream cheese to it while it was warm because, why not? So tasty and will definitely make again!
JudyG
Does anyone know whether these freeze well?
Lisa MarcAurele
The blueberry mug cake will freeze well.
Sheri
Just finished eating this and it is FANTASTIC! Just the right amount of sweetness, the lemon extract compliments the blueberries beautifully and it is just the right amount for a quick dessert without any eggy taste! Definitely recommend trying this!
Shayelyn
I love raspberry and lemon so I’m going to try that. Can melted butter be subbed for the coconut oil?
Lisa MarcAurele
Butter should work for the coconut oil. And the combination of raspberry and lemon sounds fantastic!
Kara
What temp do you bake in the oven? 350? And for 10-15 min? When you bake, can you bake 1-2 ramekins at a time or can you also increase the recipe and bake up to say 6 ramekins at a time? Also, would you bake the ramekins in water in a bigger dish?
Lisa MarcAurele
No water dish needed for oven baking. I would try 325°F or 350°F and keep an eye on them after about 5-10 minutes. You can also bake multiples in the oven.
Roberta
These are AMAZING! Thanks so much for the recipe!!!
Lisa MarcAurele
My pleasure!
Jeanette Clayton
I just made them with blackberries... beautiful❣
Lisa MarcAurele
That does sound good. And there's fewer carbs in blackberries.
Joyce
Omg this is so yummy and very easy to make. Its gonna be one of faves now, thank you ! ?
Lisa
You're welcome!
Candice
Made this for breakfast this morning and we all gobbled it up! Perfect texture-not too moist or dry. Thank you, I've added this to my favorites!
Lisa
Thanks so much for writing in to let us know how much you enjoyed the recipe!
Elise Damico
Do you know if you could use banana flour or cassava flour w this? I know they aren’t exactly keto but I can’t have almonds or coconuts at all.
Lisa
It's worth a try using a similar amount. I don't have experience with banana or cassava flour but I'm thinking a similar amount should work as a sub.
Fiona
Hi, can you make this without the coconut flour, maybe use extra almond flour? Thanks
Lisa
It should work with all almond flour (3 tablespoons).
Shawna
Simple recipe for a quick breakfast or snack. Used frozen blueberries. Microwaved for a little over 1.5 minutes. Top of muffin/ mug cake was dry but bottom was still a little wet. Afraid I would scorch the cake, I placed it in a toaster for a little crispness. Slathered butter on top. Thankfully the recipe is not “eggy” tasting. Can’t wait to have the other serving later this week! I am not going to share ?
Julie Sadler
Dear Lisa,
This has got to be my favorite mug cake yet! And I've tried a FEW. Just made it and am enjoying every bite of it!!
Wow... Keep up the good work.
Lisa
Thanks Julie!
Lorna
Thanks for the recipe! I'm only 3 weeks in on a low-carb diet and my MIL sent over a large can filled with choco chip Tollhouse cookies for the kids. The fumes were all over the kitchen and I really needed a "baked good" to keep me sane. This hit the spot and it was quick enough to keep me from raiding the pantry while it baked. Lifesaver!
Lisa
Good for you staying away from those cookies! I'm sure it must have been torture to smell them.
gail
Made these this morning. They were wonderful Used more blueberries than what was called for. Next time I have strawberries I am going to make these again. YUM!!
Lisa
Strawberries are lower in carbs so it's a good choice.
Tokki
In Love! I made a keto friendly 'McGriddle' out of this recipe. Sliced 1 portion in half - opening up for a sandwich ready to be topped. Put cheese (I used Brie), bacon and drizzle sugar free maple syrup. Viola! McD's keto style. This recipe is a keeper. ?
Lisa
Wow! Sounds awesome. Thanks for sharing that idea!
Darlene
Is the Swerve powdered or granular?
Lisa
You can use either.
Ethalfrida
I just made this for breakfast because I seriously need to cut down on my carbs. I love this recipe. I omitted the Swerve and salt and it was delicious. However, not that I care this time but the caloric count did not match what Cronometer came up with. But regardless, I needed the calories today anyway. Thank you and looking forward to other recipes.
Ethalfrida
Apologies, now I know why the calorie count doesn't match. I used one ramekin and ate the entire contents.
Lisa
It is easy to eat the one thing! But, to keep carbs at a minimum, I like to only eat half.
Sabrina
I am new to gluten free. Why do you need to use almond flour and coconut flour? Can you get by with just coconut flour? Almond flour is just so expensive for my family of 6.
Lisa
You can get by with just coconut flour, but the recipe will need adjustment. Typically, you need less coconut flour than almond flour and more egg/liquid.
Nusrat
What brand of coconut flour do you use?
Lisa
I've been using Nutiva.
Nusrat
HI lisa
I have extra fine coconut flour. How do I sub it for regular coconut flour. I think that is the reason for my recipe disasters involving coconut
Any idea??
Lisa
I don't have an exact conversion. If the recipe comes out too wet, add more. If too dry, reduce the amount. It will take some experimenting.