Vanilla Keto Mug Cake

4.1 stars, average of 152 ratings

By Martina Slajerova, updated March 22 202060

Sweet mug cakes are some of the easiest go-to keto desserts. A couple of minutes - that's all it takes to make this treat! Even if you don't follow a ketogenic diet, you will simply fall in love with them. Just like my other recipes, these are also paleo-friendly. If you don't have a sweet tooth, you can try some of the savoury mug muffins on my blog!

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Tips & substitutions

If you want to make the recipe nut-free, use 1 tablespoon of coconut flour instead of 2 tablespoons of almond flour. If you don't have coconut flour, you can use 2 tablespoons of finely shredded desiccated coconut instead.

Too "eggy"? Although I like this combination, some of you may perceive it as too "eggy". You can try the following: use one egg, double all the dry ingredients and add ¹/₄ cup coconut milk, almond milk or cream. This mixture will make 2 mug cakes.

Instead of the listed sweeteners, you can try other healthy low-carb sweeteners from this list. The reason I'm using both Erythritol and stevia is to mask the aftertaste some of the sweeteners may have.

If you don't have a microwave, I suggest you make 4-8 servings at once. Preheat the oven to 175 °C/ 350 °F (fan assisted), or 195 °C/ 380 °F (conventional) and cook for about 15 minutes or until cooked in the centre.

0 days, 0 hours, 0 minutes

Hands-on 5 minutes Overall 5 minutes

Nutritional values (per serving)

Net carbs4.2 grams

Protein11.8 grams

Fat28.4 grams

Calories338 kcal

Calories from carbs 5%, protein 15%, fat 80%

Total carbs7.9 gramsFiber3.7 gramsSugars2.9 gramsSaturated fat15.1 gramsSodium214 mg(9% RDA)Magnesium57 mg(14% RDA)Potassium222 mg(11% EMR)

Ingredients (makes 1 serving)

2 heaping tbsp almond flour (16 g/ 0.6 oz)
1 heaping tbsp coconut flour (12 g/ 0.4 oz)
¹/₄ tsp vanilla bean powder or ¹/₂ tsp sugar-free vanilla extract (you can make your own)
¹/₈ tsp baking soda
2 tbsp Erythritol or Swerve, or other healthy low-carb sweetener from this list (20 g / 0.7 oz)
1 large egg, free-range or organic
1 tbsp extra virgin coconut oil or butter, melted
Optional: 3-5 drops liquid stevia (I used Vanilla Stevia drops from SweetLeaf)
Optional topping: 2 tbsp whipped cream, coconut milk or full-fat yogurt and a pinch of cinnamon

Instructions

Place all the dry ingredients in a mug or a ramekin and combine well.
Add the egg.
Add coconut oil and stevia and mix well using a fork. Microwave on high for 70-90 seconds.
When done, you can optionally top the mug cake with whipped cream or creamed coconut milk or full-fat yogurt and add a pinch of vanilla powder or cinnamon.
Serve or store at room temperature for up to a 3 days.

Ingredient nutritional breakdown (per serving)

Net carbs	Protein	Fat	Calories
Almond flour (blanched ground almonds, almond meal)
1.4 g	3.4 g	8.4 g	94 kcal
Coconut flour, organic
1.3 g	2.1 g	1.8 g	44 kcal
Vanilla extract, powder (vanilla bean)
0.1 g	0 g	0 g	3 kcal
Baking soda, raising agent (bicarbonate of soda)
0 g	0 g	0 g	0 kcal
Erythritol (natural low-carb sweetener)
1 g	0 g	0 g	4 kcal
Eggs, free-range or organic
0.4 g	6.3 g	4.8 g	72 kcal
Coconut oil, extra virgin
0 g	0 g	13.5 g	121 kcal
Total per serving
4.2 g	11.8 g	28.4 g	338 kcal

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Comments (60)

Karen one year ago #

Just made this and added blueberries, it was so good! Thank you!

Martina @ KetoDiet one year ago #

Thank you Karen, I'm glad you enjoyed!

Andi 2 years ago #

I made this, split it into two, layer cake style, whipped 4 T of whipped cream, frosted it like a cake and sprinkled the middle layer and top with lightly, naturally sweetened cacao nibs for crunch....presentation is beautiful andtaste was phenominal. For those cheat days or splurge times

Martina @ KetoDiet one year ago #

Thank you Andi! ❤

Rebecca 2 years ago #

Thank you for the recipe and your tips at the end!! I made this last night with the 1 tablespoon of coconut flour, butter, and added a splash of heavy whipping cream bcuz mine seemed to need more liquid. Probably bcuz coconut flour is so absorbent. Anyway, it was delicious!!! Because of recipes like this, Im not missing sugar at all. Thanks again!! Love it!

Martina @ KetoDiet 2 years ago #

I'm glad you enjoyed! ❤

Christina Best 2 years ago #

I'm not sure what I did wrong. I've made mug cakes in the past, but this one turned out really thick (like a dough, not batter). I did not add liquid stevia as it said optional.

Martina @ KetoDiet 2 years ago #

Hi Christina, did you substitute the almond flour with coconut flour (more absorbent)? That might be the reason. Or the egg might have been "medium"?

Chaigrrl 2 years ago #

I added lots of vanilla and a 1/8 or so of a cup of Lily's chocolate chips. Very tasty! Mine was a bit dry and crumbly, I think I used too much 'heaping' in the tbsps and not enough olive oil.
I'll attempt to do a bit more with it in future. It stands on its own, and is also such a great base recipe; I'll try adding lemon or orange extract and perhaps some berries and/or nuts (though will try the chocolate chips again with the lemon...lemon and chocolate!! ...and also with poppyseed. Lemon poppyseed are my favourite muffins).
Thanks for the recipe for this versatile mug cake!

Martina @ KetoDiet 2 years ago #

That might be the reason - it is always best to go by "grams/oz". I love using this as a base for quick deserts! 😊 You may like these:
Keto Berry Mug Cake
Orange & Chocolate Chip Keto Mug Cake

CYNTHIA 2 years ago #

It was delicious 😙

Kris 2 years ago #

Need to recalculate. This is 8 net carbs

Martina @ KetoDiet 2 years ago #

Kris, I suppose you use an app like MFP to get to that value? I'm afraid your calculations are wrong. We use verified sources (not crowd sourced) to calculate all nutrition facts. What you see is accurate.

Melissa 2 years ago #

Mine was a complete bust. Followed the directions minus the sweetener mentioned and it smells like straight eggs andlooks nothing like the pic.

Martina @ KetoDiet 2 years ago #

Hi Melissa, I'm sorry it didn't work for you. I've been making this mug cake for several years and always had the same results so I'm not sure what the issue might have been. There are tips below the list of ingredients that might help.

Leah 2 years ago #

How many calories???

Martina @ KetoDiet 2 years ago #

It's listed in the table as "kcal".

Vanessa 2 years ago #

Are we to use both the almond flour and the coconut flour or just choose one or the other. The ingredients listed both but the tip said to use 1 tbsp of coconut flour instead of almond flour. Would that mean we are to 2 tbsp of coconut flour?
Also, your recipes look delicious. Looking forward to giving this one a shot as well as a few others.

Martina @ KetoDiet 2 years ago #

This recipe uses both but if you want to avoid almond flour, you can substitute it with a tablespoon of coconut flour. I hope this helps!

Debbie D 2 years ago #

We made these the other night. First dessert in a month after starting Keto. It was delicious❤
We topped it with a few diced strawberries and a little sugar free whipping

Laura 2 years ago #

Simple, quick, and delicious! My husband and I split one with some Halo Top ... Thanks for the recipe! This will certainly be one I make again!

Amanda 2 years ago #

Thanks for the recipe! I added 1 tbsp unsweetened cocoa powder and oh man it was so freakin' good! (I did butter, powdered erythritol, and 3 drops of liquid stevia). Would be super good with a scoop of vanilla halo top!

Scott 3 years ago #

I tried this tonight and unfortunately, my batter came out super thick. Are the proportions on the recipe correct?

Martina @ KetoDiet 2 years ago #

Hi Scott, I'm not sure what went wrong. It's very small amounts so you shouldn't need to weigh it. Did you use large eggs?

Sonia Mehrotra 2 years ago #

I had the same issue... I think "heaping" is a subjective term ...different ppl use it differently. A suggestion... would it not be easier to measure in tbsp and teaspoons...I read somewhere that a tbsp each of almond flour and coconut flour each weigh 6gms and 8 gms respectively..heaping more may have caused thick batter.

Kristy 3 years ago #

Could you double/triple for an actual cake? It tastes so good!

Martina @ KetoDiet 2 years ago #

Absolutely! I'm glad you like it 😊

Johnna 3 years ago #

This saved me from my daughter's graduation cake left overs!! I was seriously debating going off plan and just smashing the cake, but I found this instead! Delicious!! Thank you.

Cheryl 3 years ago #

I've tried a lot of keto mug cakes and this one is definitely in my top 3. I was really excited to try a vanilla base cake since almost all of the other ones I had tried in the past were chocolate. I knew I could make a few tweaks to the flavor without changing much of the integrity, and I'm really glad I did. Instead of using vanilla extract (1/2 tsp in recipe), I used a combination of Sugar Free Vanilla Torani Syrup (1/2 tsp) and Sugar Free Chocolate Chip Cookie Dough Torani Syrup (1 tsp). (I skipped the liquid stevia entirely since I added in the extra syrup.) I let the mixture sit for a few seconds and then added in 1 tbsp of water to thin the batter. 90 seconds in the microwave and it was perfect.

T Baker 3 years ago #

Torani makes SF cookie dough syrup? You may have changed my life with this info, friend! Yay!

Julie 3 years ago #

My first experience with a keto dessert fell flat so I was skeptical of the mug cake but we're having a celebratory cake at work tomorrow so I really wanted something sweet. I made this to try tonight and holy moly it was fantastic!!!! I used Monkfruit as my sweetener and didn't bother to top it with anything! Thanks! I am totally going to stalk the recipe pages now!

Martina @ KetoDiet 3 years ago #

Thank you for your kind words, Julie!!

Keto_amazed 3 years ago #

So many mug cake recipes available online and I decided to make yours because I knew it would be the best. Your recipes are always perfect!
I have no words to describe how delicious this mug cake is... seriously... it's amazing!!! Thank you, thank you, thank you!!!

Martina @ KetoDiet 3 years ago #

Thank you so much! I'm glad you liked it 😊

JAtl 3 years ago #

Hi Martina! I love your blog and have been reading and following it for a while. I started a keto diet a while ago and lost almost 30 pounds but I fell off and trying to get back into it. Unfortunately when I fell off I was eating sweets again. Now that I'm trying to be strict with keto again I am craving sweet food so I decided to try some of the mug cakes and made this vanilla one tonight. It was really good and stopped me from buying something with real sugar today. I also made the bone broth and chicken broccoli alfredo yesterday and it taste great. Your blog is really helpful with many different food and drink options to never get tired of. Thanks!

Martina @ KetoDiet 3 years ago #

Thank you so much, I'm glad that my keto treats help you with sugar cravings! 😊

Terrie 3 years ago #

I just made this and it was fantastic! Try it, you will love it.
I added 1T cocoa powder and a 1t extra swerve. I also measured the flours.
Thank you!!!

Martina @ KetoDiet 3 years ago #

Thank you Terrie, I'm glad you like it!

Kay 3 years ago #

I was having a sweet craving just now and this is bomb.
The mixture looked a bit dry to me so I added half a tablespoon of heavy cream and the cake was moisture, fluffy and delicious!
Thank you for the amazing recipe!

Martina @ KetoDiet 3 years ago #

Awesome, I'm glad you liked it!

RoseAnn Pacheco 3 years ago #

just made it...super delicious..and fast...
Thanks, R

Martina @ KetoDiet 3 years ago #

Thank you!

Paula 3 years ago #

Just had this for dinner and it was super yummy and so easy. Thanks! ^.^

Martina @ KetoDiet 3 years ago #

Thank you Paula!

Jeni 4 years ago #

I added some dairy free chocolate chips and topped with whipped coconut cream. Ah-mazing!!

Martina @ KetoDiet 4 years ago #

Thank you! 😊

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Lisa 4 years ago #

Quick clarification - the recipe as is calls for 1T coconut flour and 2T almond flour - so if I go nut-free it would be 2T coconut flour total, correct? the original 1T + the replacement 1T.

Martina @ KetoDiet 4 years ago #

Hi Lisa, yes that's correct - just make sure these are "heaping" tablespoons. I hope this helps!

Rochelle 4 years ago #

Thank you for this recipe! It was yummy! I have a question though: is it normal for the bottom portion to have a blue tint to it? I used coconut flour,butter, and truvia. Not sure if that had anything to do with it?

Martina @ KetoDiet 4 years ago #

I'm not sure to be honest - could it be the almond flour or sweetener? I never noticed that!

Cristina (http://travelforwildlife.com/) 4 years ago #

I sometimes get a blue tint on the keto buns. But I only get it when I make a whole loaf instead of the buns. Weird!

Martina @ KetoDiet 4 years ago #

Hi Cristina, that happens with some psyllium brands. I use Now Foods and it's always perfect. More tips are here: The Best Low-Carb & Paleo Bread - The Ultimate Guide

Lyzbeth 4 years ago #

Thank you so much for this recipe. Needed some sweet and it was ready in 2 minutes. I really love your blog and planner. Thank you for making my keto journey easier😊

Martina @ KetoDiet 4 years ago #

Thank you Lyzbeth!! 😊

Diana Schroeder 4 years ago #

How can this be only 7.9 carbs when Erythritol has 4 carbs per teaspoon? 3 tsp in a Tbsp Making that alone 12 carbs?

Martina @ KetoDiet 4 years ago #

Hi Diana, I only count a small part of it as carbs. Erythritol has zero effect on blood sugar and is very low in calories. Most of it gets excreted via urine. Some people count it as "zero" but I'm using a "safe" method where I count all the calories in it as net carbs (very small number, about 5 g net carbs per 100 grams) - here is more about sugar alcohols: Complete Guide To Sweeteners on a Low-Carb Ketogenic Diet

Diana Schroeder 4 years ago #

Thanks for the clarification. The cake was really good and was great for my sweet craving. Used all coconut flour and butter.

Martina @ KetoDiet 4 years ago #

Glad you liked it Diana! 😊

Nakia 3 years ago #

This was great and perfect for my sweet tooth! Which I rarely have I used all coconut flour, butter,1 egg, vanilla, stevia and added heavy whipping cream for more moisture and it was 6 yr old approve! Thank you!!!

Martina @ KetoDiet 3 years ago #

Awesome, I'm glad it was a hit! 😊

Hi, I'm Martina!

I'm a cookbook author, mobile app creator, recipe developer, food photographer, writer, and a firm believer in low-carb living.

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