Keto Chocolate Brownie Mug Cake – Low Carb

This Keto Chocolate Mug Cake is a quick & easy low carb dessert with a brownie texture and rich chocolate flavor. Gluten free and with built in portion control – it will satisfy your sweet tooth without blowing your carb budget!

Keto Chocolate Mug Cake with a scoop of vanilla ice cream

This keto chocolate brownie mug cake recipe has been popular here on IBIH for quite a few years now. I decided to dust it off and update the post a bit for those of you that haven’t come across it yet.

The thing I love about keto mug cakes is that they are so easy (and fast!) to make, and that you aren’t committed to an entire pan of something.  Portion control is so much easier when you are only making one or two servings of keto dessert at a time!

I knew I wanted to do a keto chocolate mug cake, and definitely wanted it to have a brownie-like feel.

It took some experimenting (oh the things I do for you), but I finally hit on the right combination to get the texture that I wanted.  Not too dry, with just the right amount of gooeyness!

Keto Chocolate Mug Cake interior

A word of caution that microwaves and mugs vary – I found this out the hard way when testing this keto chocolate mug cake recipe out.

I had been using the same mug for several tries with great results, then I made the last one with a thinner walled mug and it was WAY overdone.  So I’m giving you the shortest likely time, and if it’s too gooey just throw it back in for another 30 seconds until it’s the consistency you want.

Once you go over it’s trashed, so err on the conservative side if your microwave is really strong, or your mugs are really thin walled.

Same goes on the other side of the coin, if your mugs are really thick or your microwave whimpy, you might need to add a little time to cook them all the way through. 

I divided this keto chocolate brownie mug cake into two portions for the sake of calories – but you could just as easily make it in one large mug and microwave it for a minute and 30 seconds to 2 minutes.

This keto chocolate brownie mug cake was warm and comforting, and perfect with some whipped cream or sugar free vanilla ice cream on top. 

In fact you almost need something creamy to break up the richness of the brownie. I used Rebel Natural Vanilla (not sponsored, I just like the brand) for this photo shoot and the results were delicious.

I added walnuts to mine because nuts are a must in brownies as far as I’m concerned.  I’m listing them as optional though, because some crazy people out there don’t like nuts in brownies. Oh the humanity!


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Keto Chocolate Brownie Mug Cake – Low Carb – Gluten Free

  • Author:
    Mellissa Sevigny

  • Prep Time:
    5 minutes

  • Cook Time:
    1 minute

  • Total Time:
    6 minutes

  • Yield:
    2 servings 1x

  • Category:
    Keto desserts

  • Method:

  • Cuisine:

  • Diet:
    Gluten Free


Warm and comforting, this keto chocolate mug cake is the quickest way to low carb brownie bliss there is! Gluten free too!

  • 2 tablespoons butter
  • 3 tablespoons superfine blanched almond flour
  • 1 teaspoon coconut flour
  • 2 tablespoons granulated sugar substitute
  • 1/4 teaspoon vanilla extract
  • pinch of salt
  • 1 egg
  • 1 tablespoon unsweetened cocoa powder
  • 1/2 teaspoon baking powder
  • 1 1/2 tablespoons sugar free chocolate chips 
  • 1 tablespoon chopped walnuts or pecans (optional)


  1. Melt the butter in a small microwave safe bowl (about 30 seconds in microwave).
  2. Add the remaining ingredients and stir until combined.
  3. Pour batter into 2 small greased mugs or ramekins.
  4. Microwave for 1 minute. (add another 30 seconds if necessary).
  5. Serve with whipped cream or sugar free vanilla ice cream.


Approximate net carbs per serving = 2g


  • Serving Size: 1 mug cake
  • Calories: 216
  • Fat: 22g
  • Carbohydrates: 4g
  • Fiber: 2g
  • Protein: 6g

Keywords: Keto chocolate mug cake, keto brownie mug cake, low carb chocolate mug cake

Delicious easy low carb chocolate brownie mug cake recipe

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