This keto mug cake is everything you want in a quick dessert—moist, chocolatey, and ready in under 5 minutes! Made with just 6 simple ingredients, it’s naturally grain-free, gluten-free, and perfect for satisfying those chocolate cravings. With only 5g net carbs, this coconut flour mug cake is the ultimate low-carb treat you’ll come back to again and again.
This keto mug cake is the ultimate chocolate fix for those moments when you want dessert but need to keep it low-carb and keto-friendly. It’s made with wholesome ingredients and seriously takes less than 2 minutes to whip up. Perfect for when that sweet tooth strikes!
Think enjoying dessert on a keto diet is impossible? Let me show you just how easy it is to create a rich, chocolatey, low-carb treat that feels indulgent without breaking your macros.
When I need something quick and satisfying, this mug cake is my go-to. Don’t forget to save this recipe for those moments when you’re craving something sweet in a hurry.
Not a fan of mug cakes or want something more elaborate? Check out my other keto desserts, like keto brownies, keto blueberry bread, or any of the popular keto treats on the blog—you’ll find something for every craving!
What is a Keto Mug Cake?
A mug cake is exactly what it sounds like—a quick, single-serving cake made in a mug! A keto mug cake uses low-carb ingredients and is usually cooked in the microwave in just 2-3 minutes.
The best part? No piles of dirty dishes to clean up! Chances are, you already have all the ingredients in your pantry, making it the perfect dessert for those last-minute chocolate cravings. This keto chocolate mug cake is calling your name!
I make this recipe almost every day—it’s that good. Sometimes I skip the sweetener because I enjoy the rich, slightly bitter taste of the chocolate. And thanks to the coconut flour, the texture is just right—no wet, eggy cake here!
Ingredients for the Keto Mug Cake
- Coconut Flour – A keto baking staple! It absorbs liquids well, giving the mug cake a fluffy texture.
- Egg – Adds structure and keeps the cake moist.
- Your Favorite Sweetener – I recommend monk fruit or erythritol for a keto-friendly option. If you’re making a paleo mug cake, swap it for coconut sugar.
- Cocoa Powder – The secret to that rich, chocolatey flavor! Use unsweetened cocoa powder for the best results.
- Grass-Fed Butter – Adds moisture and a touch of richness to the cake.
- Whipping Cream or Coconut Cream – For added creaminess and a boost of flavor.
- Unsweetened Almond Milk or Water – To adjust the consistency of the batter without adding carbs.
How to Make Keto Mug Cake?
The beauty of a mug cake is its simplicity—mix, microwave, and dig in! Here’s how to make your keto mug cake step-by-step. For precise measurements, scroll down to the recipe card for all the details (and a printable version).
- Mix the Dry Ingredients – Start by combining the coconut flour and cocoa powder in a small bowl. This ensures everything is evenly distributed for a smooth batter.
- Sweeten to Taste – Add your favorite sweetener, adjusting the amount to suit your taste. Some like it sweeter, some don’t—your mug cake, your rules!
- Combine the Wet Ingredients – In another bowl, whisk together the melted butter, beaten egg, whipping cream, and unsweetened almond milk. Make sure you’re using unsweetened almond milk to keep it keto-friendly.
- Bring It All Together – Pour the wet ingredients into the dry and mix until smooth. If the batter feels too thick, add a splash more almond milk or water until it resembles a brownie batter consistency.
- Prep Your Mug – Grease your favorite microwave-safe mug with a little butter or coconut oil, then pour in the batter.
- Microwave to Perfection – Place the mug in your microwave and cook for 2-4 minutes. The time will vary depending on your microwave’s power. Check for doneness by inserting a skewer—it should come out clean. For me, 3 minutes is just right!
How to Serve Easy Low Carb Mug Cake?
You can totally dig in straight from the mug, but I like to get a little fancy. I flip mine onto a plate, add some dark chocolate, a sprinkle of cinnamon, or a dollop of peanut butter. Feeling extra? Drizzle a bit of coconut oil over the top—it’s pure magic.
The texture? It’s like biting into a proper chocolate brownie—moist, rich, and ridiculously satisfying. Trust me, you’ll feel like you’re eating the real deal.
Now, imagine this: your warm mug cake topped with a swirl of fresh whipped cream or a scoop of keto vanilla ice cream, paired with a hot keto coffee. Absolute heaven, right? So, go ahead, make it now and treat yourself!
If you give this recipe a go, let me know how it turned out! What’s your favorite keto or low-carb dessert? I’m always looking for ideas to try next! 😊
Other Keto Chocolate Desserts You’ll Love
- Simple Chocolate Keto Chia Seed Pudding
- Low Carb & Keto Chocolate Mousse
- Flourless Almond Butter Double Chocolate Chip Cookies
- Quick and Easy Dairy-Free Keto Chocolate Peanut Butter Lava Cake
Super Easy Keto Chocolate Brownie Mug Cake
Description
Ingredients
- 1 tbsp Butter or coconut oil
- 2 tbsp Coconut Flour
- 1 tbsp Cocoa Powder
- 1 Large Egg room temperature
- 2 tbsp Whipping Cream or coconut cream
- 2-3 tbsp Almond Milk if needed
- 2 tsp Sweetener
Instructions
- Melt the butter in the microwave for a few seconds.
- Combine the dry ingredients: the coconut flour, cocoa powder, and sweetener.
- Combine the wet ingredients: butter, whipping cream, egg, and water or almond milk (if necessary).
- Mix well the dry & wet ingredients.
- Grease your mug with some butter or nonstick spray.
- Pour the mixture into the mug.
- Microwave for 2-3 minutes, depending on the power of your microwave.
- Serve it with coconut oil, whipped cream or fresh berries. Enjoy!
Nutrition information is shared to make meal planning easier. Values are estimates and can vary depending on the ingredients, brands, and serving sizes used. Learn more in my nutrition policy.
Thanks for posting♡♡
You are welcome, dear!
YAY!!! Gonna give this a try! What kind do mug did u use? I have those Iil 6-8 oz glass ramekins…. Would those work?? Thanks in advance!
DELICIOUS! I topped with 2 tbsp of Enlighten Triple Chocolate ice cream and whip cream…. YUM! Thank You!
They cane out delish! I added a few sufar free chocolate chips and it was so good!!!!
Thank you, Sonia! I am really happy you enjoyed the recipe!
Omg Heaven! I’ve been looking for a good mug cake recipe and finally! This one is it I did add some natural peanut butter on top of it when it came out of the micro and added a little whipped cream. It was insanely Delish. Thanks for sharing, this is a keeper!!
First attempt; recipe as listed. 2½ minutes in microwave. tasted ok, but really dry. Will try again tomorrow. a little more liquid at 2 minutes.
Thank you for sharing your experience with making the Keto Chocolate Mug Cake! It’s not uncommon for microwave times to vary depending on the wattage of the microwave oven, so adjusting the cooking time and adding a little more liquid is a good approach. Experimenting with the recipe to achieve the desired moistness is a great idea, and I hope your second attempt turns out even better.
Could be a little sweeter, I added chocolate chips and a pinch of salt! Luv