This keto mug cake recipe is super quick and easy to make in the microwave and is sure to satisfy your sweet tooth. Full of sugar-free chocolate chips and only 6 grams of net carbs per mug, it is the perfect chocolate mug cake dessert!

If you love chocolate, chocolate desserts, and prefer healthier options. Try my chocolate lovers fat bomb, keto avocado brownies, and chocolate chunk energy bars. With these chocolate recipes in hand, you're good to go.
Contents
⭐ Chocolate mug cake
Whip up this delicious chocolate mug cake in a few minutes. There is no need to waste precious time waiting for an oven to get hot or carefully making the chocolate cake batter. You can prepare all the ingredients in a mug, pop it in the microwave for 2 minutes and enjoy!
Microwave mug cakes have saved me more times than I can remember when I start craving chocolate, and I have nothing ready-made in the fridge and cupboards. Plus, this keto mug cake recipe is sugar-free and great for a low-carb lifestyle but also has the option to add your favorite toppings like ice cream, berries, peanut butter, whipped cream, or caramel sauce.
Although the calorie count may increase if you choose to add your favorite toppings, the mug cake is delicious on its own and has enough cacao powder to satisfy your chocolate fix!
I make mug cake recipes at least once a week for my kids or movie night in with my husband, as they are so easy, versatile, and curb my sweet craving instantly.
If you have never made your first mug cake, then carry on reading to learn how to make the best mug cake. I promise you will be amazed by how tasty and simple it is!
🍽 What you need
This recipe is gluten-free as there is no added flour to make this microwave mug cake, unlike a traditional chocolate cake that uses all-purpose or almond flour. You can use any mug you have to make this recipe, like coffee mugs or an oven-safe ramekin. Just make sure that it is microwave-safe!
Ingredients
- 1 egg - beaten
- 1 tablespoon unsweetened cocoa powder
- ¼ teaspoon baking powder
- ½ tsp vanilla extract
- ½ teaspoon almond extract
- 5 grams Keto-friendly chocolate chips - (about 1 heaping tsp)
- 1 tbsp Erythritol
- 1 tablespoon heavy whipping cream
- 1 teaspoon unsalted butter
Equipment
- A fork
- mug or ramekin
- Two small mixing bowls

🔪 How to make
Keto mug cakes are the best thing since the microwave itself, and I am not even a fan of microwaves. Still, when making chocolate cakes, I will gladly put aside any griefs I have to bake my keto chocolate mug cake!
Instructions
- Heat the mug with butter inside for 10 seconds in the microwave or until the butter is melted. Swirl it around the mug so it covers the inside. You can also use cooking spray if you prefer.
- Mix the whipped cream and the beaten egg until combined. Add the almond and vanilla extracts, and continue beating the mixture until fluffy.
- In the other bowl, mix the baking powder, erythritol, and cocoa powder until well combined.
- Pour the dry ingredients in the mug first and then the wet ones, stirring with a fork until the chocolate cake batter is smooth and velvety.
- Place some sugar-free chocolate chips on top of the mixture and microwave for 90 seconds on high. Depending on the power of your microwave, you may need an additional 30 seconds.
- To know if the keto mug cake is ready, stick a toothpick through the center, and if it comes out with a little bit of mixture stuck on it, it's ready!
- Remove the mug from the microwave and serve warm as it is or scoop it out onto a plate with some crushed raspberries or a topping of your choice.
💭 Top tips
- Whip up some extra heavy cream to add to the mixture and on top to serve.
- To make an airy chocolate mug cake, add a small teaspoon of baking soda to the dry mixture.
- If you want a super chocolatey cake, add some melted sugar-free chocolate chips to the mixture and some on top for a rich chocolate flavor.
📋 Variations
- For a coconut chocolate mug cake, add 20g of coconut flour and 20g of coconut flakes to the dry ingredients, and substitute the regular cream for coconut whipped cream.
- To make it dairy-free, substitute the butter for coconut oil and use coconut cream instead of whipped cream.

🧂 Toppings
Keto desserts like the keto mug cake are great for people on a low-carb diet and want to watch their carb and calorie intake. But if you feel like the mug cake needs some toppings, then try some of these sugar-free suggestions and also toppings for a sweet tooth.
- Keto Ice cream: Keto recipes are always low on sugar, so having this ice cream as a topping sounds delicious and tastes fantastic with mug cakes.
- Peanut Butter: Nothing beats chocolate and runny peanut butter together. Use natural peanut butter with no added sugars to mix through the cake and enjoy!
- Berries: You can use any berries for this great recipe like strawberries, raspberries, blackberries, or even cherries. Whatever is in season is an excellent topping for healthy recipes.
- Caramel sauce: This is my go-to dessert! I love sugary desserts with anything caramel, but luckily you can find sugar-free caramel sauce, which is insanely tasty with mug cakes. MUST TRY!
🥫 Storage
Although this recipe is best cooked at the time of need, as it only takes a few minutes to prepare, you can also eat half if you made a big mug portion and save the rest for another time.
It is possible to store the cake in the fridge for up to 2 days once it has cooled down. The cake may become a little dryer than it was, but it will still taste OK.
You can reheat it again in the microwave for 30 seconds.
👪 Serving size
Keto chocolate recipes don't get much better than this keto mug cake!
Keto recipes are a brilliant way to watch your sugar and carb intake, and with only 6 carbs going into each mug, this cake is one worth making regularly and is entirely GUILTY FREE.
An easy dessert perfect for sharing if you have a big mug, or devouring on your own. Though, it's hard to share something that tastes sooo good)
📋 Recipe

Keto Mug Cake
Ingredients
- 1 egg - beaten
- 1 tablespoon unsweetened cocoa powder
- ¼ teaspoon baking powder
- ½ teaspoon vanilla extract
- ½ teaspoon almond extract
- 5 grams Keto friendly chocolate chips - (about 1 heaping tsp)
- 1 tablespoon Erythritol
- 1 tablespoon heavy whipping cream
- 1 teaspoon unsalted butter
Instructions
- Place butter into a ramekin or mug and melt the butter in the microwave. Swirl it around to coat the inside of the container. You can also use a cooking spray to grease the inside of the container if you prefer instead of butter.
- In a small bowl, mix together the beaten egg and the heavy whipping cream.
- Add vanilla and almond extracts to the egg mixture.
- In another small bowl, combine the cocoa powder, erythritol and baking powder, stir to combine well.
- Pour the dry ingredients into the greased ramekin or mug.
- Add the wet ingredients on top of the dry ones, and stir well with a spoon or fork until the mixture is smooth.
- Toss in the chocolate chips.
- Microwave for 90 seconds.
- Remove the ramekin or mug from the microwave after a minute, and either serve in the container, or dump out and serve on a plate of your choice.
- Optional: Crush up ¼ cup of raspberries if desired, and serve on top of the cake.
Notes
- Whip up some extra heavy cream to add to the mixture and on top to serve.
- To make an airy chocolate mug cake, add a small teaspoon of baking soda to the dry mixture.
- If you want a super chocolatey cake, add some melted sugar-free chocolate chips to the mixture and some on top for a rich chocolate flavor.
- For a coconut chocolate mug cake, add 20g of coconut flour and 20g of coconut flakes to the dry ingredients, and substitute the regular cream for coconut whipped cream.
- To make it dairy-free, substitute the butter for coconut oil and use coconut cream instead of whipped cream.
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