Low-Carb Carrot Mug Cake

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This low-carb carrot mug cake uses almond flour instead of regular flour so you can still enjoy the wonderful warming spice and sweetness of a carrot cake, even while on a low-carb diet.

» Check out these other great keto mug cakes! We especially love this cinnamon roll mug cake.

Low Carb Carrot Mug Cake

Little treats like a mug cake can make a keto or low-carb diet easier to adhere to, if you have a bit of a sweet tooth. That’s why I’ve added quite a few mug cake recipes to our website. If a quick mug cake can satisfy your craving for things like carrot cake, you’ll be more likely to adhere to the diet long term.

Traditional carrot cake is one of my favorites. It was one of my go-to cakes for celebrations and dessert for holidays, like Easter. I thought I’d have to give it up after choosing a low-carb lifestyle, because there are a huge amount of carbs in a regular carrot cake. But luckily that’s not the case.

As with most things, you can definitely make carrot cake in a low-carb way, so you aren’t ingesting 100+ grams of carbs in a single slice. Using almond flour and a sugar substitute, this variation of your favorite carrot cake is just as tasty.

Low Carb Carrot Mug Cake

This low-carb carrot cake can be mixed up and microwaved in under 5 minutes. It’s large enough for about 3-4 small servings, or it can be served as breakfast for 2.

I think it’s great for entertaining. You can easily mix it up if someone pops over to your house, and serve it with a pot of tea. The flavor is spot on. And the texture isn’t a whole lot different from the flour version. It’s very unlikely anyone would be able to say it’s low-carb unless they knew.

There are 7 net grams of carbs per serving when cut into 3 slices. If you divide it in two, there are 10 net grams of carbs per serving.


I don’t recommend substituting the almond flour with coconut flour. First of all, it’s a very different measurement ratio, so a direct substitution won’t work, but mainly because it won’t be as moist with coconut four.

If you don’t like the cooling effect of Erythritol sugar substitute, you can use Xylitol or another sweetener of your choice. Keep in mind that xylitol has more carbs and calories than Erythritol.

How to Make Carrot Mug Cake

The cake is simple to make. You’ll need to grate the carrot. I just use a manual cheese grater. You can use a food processor, if you wish.

Then mix all the cake ingredients together in a bowl.

carrot cake ingredients
  • shredded carrot
  • almond flour
  • cinnamon
  • pie spice
  • baking powder
  • melted butter
  • heavy cream
  • egg
  • toasted walnuts

Mix together until it’s well blended. A mixer or food processor isn’t necessary for this. It’s really easy to just stir it all up with a spoon.

mixed carrot cake batter

You can bake this in two separate ramekins or mugs to make 2 individual cakes, or you can put it all into a larger ramekin or a small baking dish. I use a 12oz ramekin. I like that it comes out looking like a little cake.

Just lightly grease the mug or ramekin before scooping in the batter to keep the cake from sticking to the sides.

Then spread the batter out evenly in the dish.

carrot cake

For me, it takes about 2 1/2 minutes to cook in the microwave on high. I have an 800 watt microwave. If yours is more powerful, it might only take 2 minutes, or it might take slightly longer, like 3 minutes.

Start with 2 minutes. Then test the middle. If it’s jiggly at all in the middle, it’s not quite done. The top might still be a bit wet looking, but as long as the center is firm, it’s done. Try not to overcook it. To avoid that, cook in 15-30 second spurts after the 2 minute mark.

Finally, mix up the glaze ingredients in a bowl. You’ll spoon this over the top of the cake once it’s done baking, just before serving. It’s best to serve while it’s still warm. The glaze will melt down the sides of the cake. It’s glorious.

Low Carb Carrot Mug Cake

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More Recipes from Delightfully Low Carb

Low Carb Carrot Mug Cake

Low Carb Carrot Mug Cake

Enjoy the warming spices and sweetness of a carrot cake, even while on a low-carb diet.
4.85 from 26 votes
Print Rate
Course: Dessert
Cuisine: American
Keyword: Carrot
Prep Time: 2 mins
Cook Time: 3 mins
Total Time: 5 mins
Servings: 3 servings
Calories: 352kcal
Author: Laura


  • 3 tbsp shredded carrot
  • 3/4 cup almond flour
  • 1 1/2 tsp cinnamon
  • 1 tsp pie spice
  • 1 tsp baking powder
  • 2 tbsp melted butter
  • 1 tbsp heavy cream
  • 1 egg
  • 2 tbsp walnuts chopped and toasted



  • Mix all of the cake ingredients together in a mixing bowl to form the batter.
  • Lightly grease a microwave safe ramekin or baking dish that’s large enough for the ingredients to double in size as it cooks.
  • Pour the batter into the dish and microwave for 2 minutes. Check for doneness by lightly touching the top of the cake. It should bounce back and not feel loose or uncooked. The very top might still be a bit wet to the touch, but will be spongy. If it’s loose or uncooked, put it back in for another 30 seconds.


  • This recipe is not designed for coconut flour.
  • You can use your choice of sugar substitute: erythritol, xylitol, allulose, swerve.
  • Can be split into 2 separate cakes.


Calories: 352kcal | Carbohydrates: 11g | Protein: 9g | Fat: 33g | Saturated Fat: 10g | Trans Fat: 1g | Cholesterol: 92mg | Sodium: 275mg | Potassium: 114mg | Fiber: 4g | Sugar: 2g | Vitamin A: 3014IU | Vitamin C: 1mg | Calcium: 178mg | Iron: 2mg

The information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for a professional nutritionist’s advice.

Read More About a Low-Carb Lifestyle

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Low Carb Carrot Mug Cake
Low-Carb Carrot Mug Cake

6 thoughts on “Low-Carb Carrot Mug Cake

  1. Emily Flint says:

    5 stars
    Wow, this is what dreams are made of, this mug cake was so good. This recipe is one of my new favorites!

  2. sarah says:

    5 stars
    I love how quick this cake is to make and it’s so delicious. It definitely cured my carrot cake craving! thanks for the great recipe.

  3. Sue says:

    5 stars
    I’m loving all your mug cakes, but the way the glaze is dripping down this carrot cake is drool-worthy!

  4. Bintu | Budget Delicious says:

    5 stars
    You just can’t beat a mug cake when you want that hit of sweetness really quickly. This sounds so delicious and I love that it is low carb!

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