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Low-carb single-serve keto mug cake with chocolate chips is a quick healthier dessert option! Grain-free, sugar-free, and super easy to prepare! All you need is 5 ingredients, a mug and a couple minutes of time to make this beauty happen!

Keto Mug Cake - grain-free, sugar-free single-serve cake in a mug! A quick and easy guilt-free dessert recipe

It’s the return of the single-serve mug dessert!

Because we all deserve a bite of cake from time to time, and sometimes we just don’t feel like baking the whole shebang.

Or we don’t trust ourselves around the whole shebang.

For the latest and greatest mug dessert, we’re going keto (or low-carb), using almond flour, sugar-free sweetener, melted butter, egg yolk, a tiny bit of baking soda and a sprinkle of sea salt. 

We add chocolate chips, because who knows what tomorrow may bring, right?!

At just 3g net carbs per cake, you’re looking at an ultra satisfying dessert without all the excess sugar.

Keto Mug Cake - grain-free, sugar-free single-serve cake in a mug! A quick and easy guilt-free dessert recipe

Let’s discuss the simple ingredients.

Ingredients for Keto Mug Cake:

Super Fine Almond Flour: Almond flour is the base of this cake. It’s full of healthy fats, fiber, and makes for a lower-carb treat. I use Super Fine Almond Flour, which makes the cake nice and fluffy with amazing texture.

Sugar-Free Sweetener: Allowing for a sinfully sweet yet sugar-free mug cake, we use a zero calorie, sugar-free granulated sweetener.

Butter, Ghee, or Coconut Oil: The fat portion of the mug cake recipe! I recommend melted butter for the best flavor, but you can use ghee to go lactose-free and/or coconut oil to go dairy-free. Be sure the butter is melted but cooled so that when you add the chocolate chips, they don’t melt right away.

Egg Yolk: Fat and fluff! The egg yolk helps the cake batter rise to a fluffy texture, while keeping it moist and decadent. Save the egg white for a different use! I add them to a scramble.

Baking Soda & Sea Salt: Leavening and flavor! The baking soda helps with leavening and the sea salt enhances the flavor of the cake, providing a nice counterbalance to the sweetness and rounding out the flavor.

Chocolate Chips (optional): Little studs of chocolate always makes a dessert a million times more enticing for me! If you’re in the same boat, toss some in.

To keep the cake vanilla, omit the chocolate chips and add ⅛ teaspoon of vanilla extract. In order to keep this recipe low-carb, use sugar-free chocolate chips. Lily’s makes great ones!

Optional Add-ins: You can add ⅛ teaspoon of pure vanilla extract for some vanilla flavor, and/or add 2 teaspoons of chopped walnuts or pecans if you’re a nut fanatic!

Grain-Free Keto Mug Cake - a low-carb single-serve cake recipe

Now that we know what ingredients we’re using, let us assemble!

How to Make Keto Mug Cake:

Add all of the ingredients to a microwave safe mug and stir until well-combined. Note: Be sure your butter has cooled before adding it, or it will melt the chocolate chips prior to microwaving.

Microwave on high for 30 to 40 seconds (depending on desired texture). For a gooier cookie consistency, microwave just 30 seconds. For a cake-like consistency, microwave for one minute.

Low-Carb Mug Cake made with almond flour and sugar-free sweetener - a healthier keto dessert recipe

Frequently Asked Questions:

What type of sweetener should I use?

To keep the mug cake low-carb, pick your favorite sugar-free sweetener. My top three recommendations for sugar-free sweeteners are Allulose, Monk Fruit Sweetener, and Truvia. Swerve works great too.

If you don’t follow a ketogenic or low-carb lifestyle, you can use coconut sugar or brown sugar instead of the sugar-free sweetener. So long as it is granulated, it will work! If you replace the granulated sweetener with a liquid sweetener, note that you’ll need to add more flour and the texture will vary.

Can I bake this in the oven?

If you don’t own a microwave, or if you prefer to not use a microwave, no sweat!
You can bake this keto mug cake in the oven. Simply stir up all the ingredients in an oven-safe mug or ramekin,  place it  on a baking sheet, and bake at 350 degrees F for 20 to 30 minutes. 

A great way of checking if a baked good is ready is taking its internal temperature using a thermometer. Simply insert a thermometer into the center of the cake. If it reads 190 degrees F or higher, it is ready.

Single-Serve Keto Mug Cake made with almond flour and sugar-free sweetener for a healthy dessert recipe for one

That’s it! Your ticket to a guilt-free, delicious treat that won’t spike your blood sugar. The next time your sweet tooth is talking and you’re trying to stick to a low-carb diet, whip up this easy recipe!

If you’re on the prowl for more single-serve desserts, try out these reader favorites!

More Desserts in Mugs:

Also try my Keto Chocolate Mug Cake for a chocolate lovers edition!

Keto Mug Cake

5 from 1 vote
By Julia Mueller
Prep: 3 minutes
Cook: 1 minute
Total: 4 minutes
Servings: 1 mug cake
This single-serve low-carb mug cake is the perfect serving for one person! Made grain-free and sugar-free with 5 ingredients, this easy dessert is perfect for those times you don't want leftovers.
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Ingredients 

Instructions 

  • Add all ingredients to a microwave safe mug and stir until well-combined. Note: make sure your butter has cooled before adding it, or else it will melt the chocolate chips before microwaving.
  • Microwave on high for 45 to 60 seconds, until cake has risen and has a few air bubbles. Note: for a cookie-like consistency, microwave for 30 to 40 seconds.

Nutrition

Serving: 1mug cake, Calories: 266kcal, Carbohydrates: 5g, Protein: 5g, Fat: 27g, Fiber: 2g

Nutrition information is automatically calculated, so should only be used as an approximation.

Like this recipe? Rate and comment below!

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Meet the Author

Julia Mueller

Julia Mueller is a cookbook author, recipe developer and owner of TheRoastedRoot.net. She shares quick and easy recipes for all occasions, from nutritious weeknight meals to holiday recipes. Dinner recipes, side dishes, desserts, appetizers, and more, can all be found on her website. Go to Julia's about page to learn more about her.

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5 from 1 vote (1 rating without comment)

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10 Comments

  1. kaylee says:

    i just made this for my husband and i and it was SO GOOD. exactly what we needed to curb the sweet tooth in a minimally expansive way. thank you!

    1. Julia says:

      Yaaay! I’m thrilled to hear it, Kaylee! Happy you and your husband enjoy the recipe. 🙂

  2. Mary says:

    I would like to make this with my little grandkids. Wow, that sounds like a lot of artificial sweetener. Is two TABLESPOONS correct?

    1. Julia says:

      Hi Mary,

      2 tablespoons is what I use, but you can definitely use less if you prefer! The cake does turn out very sweet with the 2 Tbsp, so if you like less sweet, decrease it to 2 teaspoons to 1 Tbsp and see if that works for your taste 😉 Hope you enjoy! xoxo

  3. Kristy says:

    So does this actually have zero carbs?! I’m excited either way, but what a bonus!

    1. Maria says:

      Following…..?

  4. Paul says:

    Why do you avoid using baking powder?

    1. Julia says:

      I use baking powder…it’s just not necessary in this particular recipe 😉 xo

  5. Jeanne says:

    Mmmmm… Quell that craving in minutes without crashing your diet! Thank you, Julia! Also, appreciate you adding the Nutrition Facts. <3

    1. Julia says:

      Right?! It’s so easy and crazy delicious! My pleasure, and let me know if you try it! xoxo