Easy Keto Chocolate Chip Mug Cake in the Microwave

Annie Lampella @ Ketofocus

By Annie Lampella, Pharm.D.

Published July 11, 2020 • Updated February 2, 2026

Reader Rating
5 Stars (6 Reviews)

This post may contain affiliate links. See my disclosure policy.

For an easy sugar-free cake recipe that tastes like a chocolate chip cookie, try this keto chocolate chip mug cake recipe. Bake it in the microwave for a simple dessert ready in minutes!

Recipe
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Easy Keto Chocolate Chip Mug Cake in the Microwave

5 (6) Prep 1m Cook 2m Total 3m 1 servings

Ingredients

  • 1 egg
  • 2 tablespoons almond flour
  • 2 tablespoons unsalted butter, melted
  • 1 1/2 tablespoons monkfruit sweetener or sweetener of choice
  • 1 tablespoon keto chocolate chips
  • 2 teaspoons coconut flour
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon vanilla
  • pinch of salt

Step by Step Instructions

Step by Step Instructions

1
Combine the ingredients

Combine all ingredients in a small bowl and mix until combined.

mug cake batter in a bowl
2
Pour the batter

Pour mug cake batter in a large greased mug or into two greased with cooking spray.

pouring keto cake batter into a small ramekin
3
Microwave it

Microwave for 60 to 85 seconds or until the cake has risen and is set in the middle (not wobbly). Remove from microwave to let cool before eating.

a baked mug cake taken out of the mug and on a plate
Tip Baking times will vary based on make and model of microwave.
Nutrition Per Serving
422 Calories
38.7g Fat
9.9g Protein
3.6g Net Carbs
10.3g Total Carbs
1 Servings
Nutrition disclaimer

The nutrition information provided is an estimate and is for informational purposes only. I am a Doctor of Pharmacy (Pharm.D.); however, this content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or other qualified health provider before making any lifestyle changes or beginning a new nutrition program.

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Easy Keto Chocolate Chip Mug Cake in the Microwave

Frequently Asked Questions

Can I use a different type of flour instead of almond flour?

Almond flour works best here, but you can substitute coconut flour. Use only 1 tablespoon and add a little extra liquid since coconut flour is more absorbent.

What can I use if I don't have monkfruit sweetener?

If you don't have monkfruit sweetener, erythritol or stevia both work. Sweetness levels differ between brands, so adjust to taste.

How do I store leftovers, and how long will they last?

Store leftovers in an airtight container in the fridge for up to 2 days. Reheat in the microwave for 10-15 seconds and it's good as fresh!

Is this mug cake suitable for meal prep?

Yes! You can mix the dry ingredients ahead of time and store them in a jar. When you're ready, just add the wet ingredients and microwave for a quick treat!

Can I add nuts or other toppings to this mug cake?

Yes! Chopped nuts, shredded coconut, or a dollop of sugar-free whipped cream all work great. Just watch the additional carbs if you're tracking closely.

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Low Carb Chocolate Chip Mug Cake Recipe

straight on view of chocolate chip mug cake on a blue backboard If you miss cake and chocolate chip cookies on a low carb diet, I’ve got a keto chocolate chip mug cake for you! This easy sugar free mug cake is a vanilla cake base with sugar-free chocolate chips mixed in. It tastes like you are eating a cookie cake. The best part – it’s very easy to make and you can bake up a single serve cake in less than two minutes! All of the ingredients for this portion controlled cake are added to a mug or ramekin and baked in the microwave so you can be enjoying your chocolate chip cake in no time!

Sugar Free Chocolate Chips

keto chocolate chip mug cake next to a bag of sugar-free chocolate chips The chocolate chips used in this mug cake are sugar-free. There are many companies coming out with sugar-free chocolate chips and you can often find them in the baking section at the grocery store, especially if you have a Whole Foods or natural grocery store. My favorite brand of sugar-free chocolate chips is ChocZero. Their chocolate chips are also sugar alcohol free so if you are the type of person that gets an upset stomach from sugar alcohols, you don’t have to worry about that with these chocolate chips. I love using these chips too because they melt within the baked good. I’ve baked with other brands of sugar-free chocolate chips that don’t melt when baked. I like it when the chip is slightly melted.

Cake Made in a Mug

Mug cakes earned their name because all the ingredients for a cake are mixed together in a mug and baked in the same mug. Traditionally mug cakes are baked in the microwave for about a minute. three ramekins stacked up I prefer a ramekin for baking my mug cake. It bakes the cake more evenly than a mug does. Plus it looks prettier. Always remember to coat the mug or ramekin with cooking oil spray before filling the vessel with cake batter so it doesn’t stick to the sides of the mug.

How to Cook Mug Cake in the Oven

baked keto mug cake in a white ramekin Most mug cakes are baked in the microwave because it’s easier and you can bake your cake quickly. But if you don’t have a microwave or don’t like to use them, you can still make mug cakes in the oven! Bake them in an oven-safe dish, like a ramekin, at 325 degrees for 5-10 minutes or until cake is set in the middle. My favorite topping for this chocolate chip mug cake is homemade whipped cream. It’s light and fluffy and melts perfectly when dolloped onto the warm, freshly baked sugar-free cake. Other options are sugar-free syrup or melted chocolate. You can also serve this mug cake with a side of your favorite low carb ice cream too.

Other Mug Cake Recipes

keto red velvet tiered mug cake with whipped cream Mug cake recipes are popular in the keto community because they’re an easy dessert you can make when you have a sweet tooth craving. Here are some of my favorites:
About the Author
Annie Lampella, Pharm.D.

Annie Lampella, Pharm.D.

Annie is a Doctor of Pharmacy, mom, and the recipe creator behind KetoFocus. With a B.S. in Genetics from UC Davis, she has over 14 years of experience developing family-friendly keto recipes based on the science of human metabolism.

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  1. A
    Alicia P. Feb 16, 2026

    My 8-year-old has been asking for chocolate chip cookies literally every day this week and I needed something fast that wouldn't wreck my macros. Made this in like 3 minutes and she ate the whole thing (I had to make a second one for myself). She said it tastes exactly like a cookie and honestly she's not wrong, the texture is spot-on. We're doing this every time she gets that look on her face now.

    1. Annie Lampella
      Annie Lampella Feb 17, 2026

      8 year olds don't lie about texture. If she said cookie you nailed it. I make these when my boys want something sweet but I need it done before they change their minds.

  2. J
    Janet Oct 18, 2022

    I just made this chocolate chip mug cake and it's delicious! Will definitely make this one again. Thank you for posting it!

  3. T
    Trina Dec 17, 2021

    Amazing....

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