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HomeCourseDesserts

Keto Mug Brownie

Cheryl Malik
Cheryl Malik Posted: 02/27/25
5
/5
9 Comments
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GF Gluten Free K Keto
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This decadent, chocolatey keto mug brownie is the best and easiest way to satisfy a sweet craving. Warm, indulgent chocolate brownie goodness, made with keto pantry staples and ready to eat in just a few minutes!

Close-up on a keto mug brownie topped with keto chocolate chips in a white coffee mug.

What We Love About This Recipe

  1. This keto mug brownie is rich and chocolatey and the perfect single-serving sweet treat.
  2. It’s super easy to make and it comes together so fast. A couple of minutes to melt the butter, a couple of minutes to mix the ingredients together, and then another minute or two to “bake” the brownie.
  3. If you’re following a keto way of eating, odds are good you’ve got all of these ingredients on hand already. They’re keto pantry staples! Of course, you’re welcome to substitute a different sweetener if you like another one better than Swerve.

How is This Recipe Keto?!

I hear you over there, on the other side of your computer screen.

 

“THIS ISN’T KETO!!!!!”

“31 GRAMS OF CARBS?! ON WHAT PLANET IS THIS BROWNIE KETO?!”

 

General keto is based off of net carbs, not total carbs. To figure out the net carbs, there’s a little math involved.

(Total Carbs) – (Fiber) – (Erythritol) = (Net Carbs)

So, using the numbers based off my specific ingredients, that would look like…

31g – 8g – 18g = 5g net carbs

5 grams of net carbs completely fits within a basic keto way of eating. Just make sure to leave a little room in your day to enjoy this treat along with all the other delicious keto foods you’re eating!

Chef’s Tips

  • Don’t over-microwave the brownie. Did you ever have those Kid Cuisine TV dinners? The ones with the chocolate brownie for dessert? Do you remember the texture of those brownies if the tray was microwaved too long? Rock hard. No saving it. The most disappointing brownie ever. Yeah, that’ll happen here, too, so watch your keto mug brownie closely.
  • It’s a totally optional step, but greasing the inside of the coffee mug with a little butter or cooking spray can help make clean-up a little easier. If you don’t want to do that, or if your mug is too small to make it possible, just soak the mug in hot, soapy water and any left-behind brownie will wipe off easily.
A keto mug brownie topped with keto chocolate chips in a white coffee mug. A spoonful of brownie is missing from the mug.

More Delicious Keto Recipes

  • Keto Chocolate Pudding
  • 2-Ingredient Keto Magic Shell (Sugar-Free Chocolate Shell)
  • Cottage Cheese Flatbread (Viral Tiktok Recipe)
  • Keto Chocolate Milk
  • Cream Cheese Fat Bombs
  • Air Fryer Zucchini Chips
  • Keto French Toast
  • Deviled Egg Salad

If you loved this recipe as much as we did, don’t forget to leave us a review below. ★ Follow Easy Healthy Recipes on Pinterest, Facebook, and Instagram, too!

 

For more delicious recipes, visit our sister sites, 40 Aprons and Easy Cheap Recipes.

Close-up on a keto mug brownie topped with keto chocolate chips in a white coffee mug.
5 from 3 votes

Keto Mug Brownie

Prep: 5 minutes minutes
Cook: 3 minutes minutes
Total: 8 minutes minutes
A rich and chocolatey keto-friendly brownie, "baked" in a coffee mug!
Cheryl MalikCheryl Malik
Print Save Saved!
1 serving

Ingredients

  • 2 tablespoons unsalted butter
  • 1 large egg
  • ½ teaspoon pure vanilla extract
  • 2 tablespoons Granular Swerve Sweetener
  • 2 tablespoons super-fine blanched almond flour
  • 2 teaspoons coconut flour
  • 2 tablespoons unsweetened cocoa powder
  • ½ teaspoon fresh baking powder
  • 1 pinch salt optional
  • keto-friendly chocolate chips optional
Get Recipe Ingredients

Equipment

  • Microwave
  • medium microwave-safe bowl
  • whisk
  • 12-ounce coffee mug

Instructions 

  • Add 2 tablespoons unsalted butter to medium microwave-safe bowl. Microwave butter 30 seconds at 50% power, then carefully remove bowl from microwave and stir butter. Repeat until butter is melted but not bubbling.
  • Carefully remove bowl from microwave. Crack 1 large egg directly into bowl of melted butter, then add ½ teaspoon pure vanilla extract. Whisk ingredients together until fully incorporated, with no streaks of egg remaining.
  • Add 2 tablespoons Granular Swerve Sweetener, 2 tablespoons super-fine blanched almond flour, 2 teaspoons coconut flour, 2 tablespoons unsweetened cocoa powder, ½ teaspoon fresh baking powder, and 1 pinch salt (optional) to bowl. Whisk ingredients together until fully combined.
  • If desired, lightly grease bottom and sides of coffee mug with butter or neutral-flavored cooking spray. Transfer prepared brownie to coffee mug.
  • Optional: Top brownie batter with keto-friendly chocolate chips.
  • Place coffee mug in microwave. Microwave batter at 100% power 60 seconds or until batter is "baked" into fluffy brownie.
  • Once brownie batter is fully baked, remove mug from microwave. Top with keto whipped cream or keto ice cream if desired and serve warm.

Notes

  • Greasing the inside of the coffee mug is totally optional but can make clean-up a little easier.
 

“How is This Recipe Keto?!”

Keto is based off of net carbs, not total carbs. To calculate net carbs, use this formula:
(Total Carbs) – (Fiber) – (Erythritol) = (Net Carbs)
So for this brownie, using our approximate nutrition information, the numbers would come out to:
31g – 8g – 18g = 5g net carbs

Nutrition Information

Serving: 1 mug brownie | Calories: 402kcal | Protein: 13g | Fat: 35g | Saturated Fat: 17g | Trans Fat: 1g | Total Carbs: 31g | Fiber: 8g | Sugar: 3g | Added Sugars: 0g | Erythritol: 18g | Allulose: 0g | Sugar Alcohols: 0g | Net Carbs: 5g | Vitamin C: 0mg | Cholesterol: 246mg | Sodium: 330mg | Potassium: 439mg | Calcium: 202mg | Iron: 4mg

Number of total servings shown is approximate. Actual number of servings will depend on your preferred portion sizes.

 

Nutritional values shown are general guidelines and reflect information for 1 serving using the ingredients listed, not including any optional ingredients. Actual macros may vary slightly depending on specific brands and types of ingredients used.

 

To determine the weight of one serving, prepare the recipe as instructed. Weigh the finished recipe, then divide the weight of the finished recipe (not including the weight of the container the food is in) by the desired number of servings. Result will be the weight of one serving.

© Author: Cheryl Malik
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Recipe Rating




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  1. AvatarMary Ann Ketron says

    Posted on 7/25/20 at 7:11 pm

    Have you tried this using honey or another natural sweetener?

    Reply
    • AvatarEmily Stallings says

      Posted on 7/26/20 at 5:12 pm

      5 stars
      We haven’t, but you definitely could try!

      Reply
  2. AvatarSteve says

    Posted on 7/24/20 at 11:59 am

    5 stars
    Not bad for Keto. Def didn’t feel like it spiked my blood sugar and it wasn’t too heavy.

    Reply
    • AvatarEmily Stallings says

      Posted on 7/26/20 at 5:13 pm

      5 stars
      That’s awesome! Cheryl’s sister made this every night while she was pregnant to avoid blood sugar spikes while still curbing her sweet tooth. She still makes it even though she’s had the baby!

      Reply

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A white woman with long brunette hair stands in a light grey kitchen drinking a green smoothie and wearing a seafoam apron.

meet cheryl

Foodie turned food blogger, I've been developing and sharing my flavor-packed, approachable recipes for more than a decade now! In addition to blogging, I'm also a certified health coach, serial entrepreneur, and busy mom of 3. I believe food should be delicious, nutritious meals don't need to be complicated, anyone can cook, and fed is best no matter your age.

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