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Keto Strawberry Mug Cake

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4.85 from 314 votes
By Carine - - 10 Comments

This keto strawberry mug cake is the best keto sweet treat to fix your cake cravings on a keto diet. A moist vanilla cake with juicy strawberries and even better with a dollop of unsweetened whipped cream on top.

Bonus, this low-carb dessert is also gluten-free, with only 4.4 grams of net carbs per serving.

What’s a keto strawberry mug cake?

A keto strawberry mug cake is a quick keto snack to fix your cake craving in 90 seconds.

It tastes like a keto strawberry shortcake without the hassle of baking a whole cake. In fact, the cake batter serves only 2 mug cakes,  baked in a coffee mug in the microwave in less than 2 minutes.

Keto low-carb mug cake ingredients

This is an almond flour mug cake recipe. You can’t replace the almond flour with the same amount of coconut flour, or the cake would be dry.

Follow my coconut flour mug cake recipe if you don’t want to bake with almond flour. All the ingredients needed for this easy mug cake recipe are:

  • Almond flour or almond meal both work here. Learn how to choose the best keto flours!
  • Unsweetened almond milk or heavy cream to increase the moist texture of the cake crumb.
  • Baking powder
  • Erythritol – feel free to use any keto sweetener you like. A combo of monk fruit and erythritol or xylitol works fine here.
  • Large egg -at room temperature is the best to avoid flour lumps.
  • Vanilla extract or vanilla essence
  • Fresh diced strawberries – make sure you dice them into small chunks, or they will release too much juice and leave the batter uncooked in some areas.

90 seconds Keto Mug Cake

How to make perfect keto mug cakes?

It is pretty easy to make a low-carb mug cake recipe as long as you follow the few basics steps below.

Step 1: Use a microwave-safe ramekin or mug

That might be obvious to some, but not all ramekins are microwave safe! So first, check that you can put your mug or ramekin in a microwave.

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Then, make sure you are using a tall enough ramekin or mug. In fact, when you cook in the microwave, cakes rise fast. They usually double in height!

In order to prevent the cake from overflowing, you need a tall mug.

It means that the mug cake batter should only fill about half the mug.  Also, heat diffuses differently in ceramic or in a glass.

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I personally prefer to bake my low-carb mug cake recipes in ceramic mugs. It keeps the crumb moist and soft.

Keto strawberry mug cake recipe

Step 2: Prepare the batter in a bowl

This is a recipe for 2 low-carb mug cakes. It means that the whole batter is split into two mugs and baked individually. Therefore, preparing the batter in a separate bowl is the best.

Keto strawberry mug cake ingredients

Step 3: use the right microwave power

I won’t stress this enough, your microwave oven has different power levels, just like your oven. Don’t assume that baking in your microwave oven is the same as for all other microwave ovens.

In fact, most regular microwave ovens are set to 800W, but some are 600W or up to 1200w. This mug cake recipe bakes for 90 seconds in an 800W microwave oven.

So before baking this recipe, check your microwave power and set it to 800W for the best results.

Can I use frozen fruits?

Fresh fruits are the best in low-carb mug cakes recipes since they don’t release as much moisture. However, you can use frozen fruits too, as long as you cut them into small pieces.

If you want to prevent them from sinking to the bottom of the mug, roll the fruits in 1 teaspoon of coconut flour before adding to the batter.

Also, if strawberries are not available, try other keto fruits like blueberries or raspberries.

Best keto mug cake toppings

A keto mug cake is even better with some topping. My favorite recommendations are:

  • Peanut butter – a drizzle of natural peanut butter is delicious with strawberries.
  • Coconut yogurt – this yogurt is dairy-free, has just a few carbs as it is made of pure coconut cream and probiotics. The combo of creamy coconut yogurt and strawberry vanilla cake is amazing.
  • Unsweetened whipped cream – a classic topping that never disappoints! It makes the recipe taste like a keto strawberry shortcake.
  • Sugar-free chocolate – melt few sugar-free chocolate chips and drizzle on top!

Keto almond flour mug cake

More keto mug cake recipes

I love keto mug cakes to quickly fix my cake cravings with limited carbs. I have plenty of other low-carb mug cake recipes for you to try.

Made this keto strawberry mug cake? What about pairing this recipe with my delicious keto strawberry milkshake !

Plus, don’t forget to share a comment or review below to connect with me.

XOXO Carine

Recipe Card

Keto Strawberry Mug Cake

90 seconds Keto Mug Cake
4.4gNet Carbs
4.85 from 314 votes
Prep Time: 5 mins
Cook Time: 2 mins
Total Time: 7 mins
Net Carbs 4.4g
Fat 9.6g
Protein 6.4g
Calories 134.6kcal
Author: Carine Claudepierre
2 mug cakes
A moist keto almond flour mug cake with juicy strawberries.

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Net Carbs
4.85 from 314 votes
Review Print


  • 1 large egg at room temperature
  • 1 teaspoon Vanilla Extract
  • 2 tablespoons Unsweetened Almond Milk or Heavy Cream, at room temperature
  • ½ teaspoon Baking Powder
  • 1 ½ tablespoon Erythritol
  • 4 tablespoons Almond Flour
  • 4 tablespoons Fresh Diced Strawberries finely diced

To decorate

  • 1 Strawberry sliced
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  • In a small bowl, beat egg, vanilla, unsweetened almond milk, baking powder, and erythritol.
  • Stir in almond flour until smooth.
  • Stir in 3 tablespoons of finely diced strawberries. Don't add too big pieces of strawberries, or the mug cake would be too moist and wouldn't bake well in these areas.
  • Transfer the batter into two tall mug cakes. Your mug cake will rise and double in height, so make sure you are using a tall mug, or the batter will overflow.
  • Bake each mug cake in the microwave, one at a time, power 800W for 90 seconds each. Don't microwave both mug cakes at the same time. Note that if your microwave has a higher power you will need to decrease baking time to avoid a dry mug cake. You can start with 60 seconds, check the texture, and return to the microwave by 10-second bursts until it is baked through.
  • Cool 2 minutes before serving to not burn yourself.
  • Enjoy directly in the mug. Top with unsweetened whipped cream and one extra strawberry slice per mug cake.

Baking method

  • Bake at 350°F (180°C) for 12-15 minutes in 2 oven-proofed ramekins.
  • Insert a skewer in the center of the cake to check if it's baked. If it comes out dry, it is baked.


  • You can't store a mug cake baked in the microwave. The texture will be chewy, eggy after 1 hour.
Frozen strawberries: you can use frozen strawberries but you must cut them into small pieces before adding them into the batter. Other options are frozen raspberries. 
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Nutrition Facts
Keto Strawberry Mug Cake
Amount Per Serving (1 mug cake)
Calories 134.6 Calories from Fat 86
% Daily Value*
Fat 9.6g15%
Saturated Fat 1.3g8%
Cholesterol 93mg31%
Sodium 161.5mg7%
Potassium 79.7mg2%
Carbohydrates 6.5g2%
Fiber 2.1g9%
Sugar 2.6g3%
Protein 6.4g13%
Vitamin A 135IU3%
Vitamin C 20.9mg25%
Calcium 120.2mg12%
Iron 1.2mg7%
Net Carbs 4.4g
* Percent Daily Values are based on a 2000 calorie diet.

Keto Strawberry Mug Cake

Keto Strawberry Mug Cake

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Recipe Rating

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    10 thoughts on Keto Strawberry Mug Cake
  1. 5 stars
    My son loves this one specifically. When I was making it for me I didn’t even bother including him, but he caught me and was like I wanna have some🤣 and after the rest is history.

  2. 5 stars
    Wow, made this as my first ever keto food. Amazing taste!!! I am going to try all my favorite recipes from this page now

    • I am so happy you love it! Unfortunately you can’t replace one flour by the other. Coconut flour has 4 times more fiber and it means that you usually need 4 time less to achieve a similar texture. Instead, try my coconut flour mug cake! It’s delicious too and no almond flour! Enjoy, XOXO Carine

  3. 5 stars
    Thank you so much for this recipe. It is the first keto Snack/ dessert that I have really enjoyed. I cannot wait to try your other recipes.
    Thanks again, DI

  4. Followed the recipe to the letter and it didn’t rise at all. Microwave 800 W 90 seconds. Confused.

    • The recipe has 1/2 teaspoon of baking powder so it should raise. These are all the reason it couldn’t is : your baking powder is old and deactivated, you mug is too wide or the strawberries are cut in big pieces adding too much weight to the batter. I hope it help fix the issue next time. Enjoy, XOXO Carine

  5. 5 stars
    My husband loves this mug cake! Thanks for posting such fabulous recipes! I am allergic to eggs & am wondering if you can substitute a “gelatin egg” for the egg in this or other mug cake recipes. Thank you,


The recipes, instructions, and articles on this website should not be taken or used as medical advice. You must consult with your doctor before starting on a keto or low-carb diet. The nutritional data provided on Sweetashoney is to be used as indicative only. The nutrition data is calculated using WP Recipe Maker. Net Carbs is calculated by removing the fiber and some sweeteners from the total Carbohydrates. As an example, a recipe with 10 grams of Carbs per 100 grams that contains 3 grams of erythritol and 5 grams of fiber will have a net carbs content of 2 grams. Some sweeteners are excluded because they are not metabolized. You should always calculate the nutritional data yourself instead of relying on Sweetashoney's data. Sweetashoney and its recipes and articles are not intended to cure, prevent, diagnose, or treat any disease. Sweetashoney cannot be liable for adverse reactions or any other outcome resulting from the use of recipes or advice found on the Website.

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