This keto carrot cake recipe is so quick and easy to make! It is soft, delightfully moist and will fill your kitchen with the gorgeous aroma of warm spices. Top this carb carrot cake with cream cheese frosting and enjoy a delicious sugar free dessert that's ready in only 10 minutes!
I love carrot cake. And I love my microwave. It has made my life SO MUCH EASIER. Heating stuff? Check. Defrosting stuff? Check. Mug cakes? Check, check, check!!
I did consider making a full-size sugar free carrot cake. But let's face it. Most of the time it's just a couple of people in the house, right? And what happens when you have a whole cake and only two people in the house?
Well, you eat the whole cake!
It might take a few days, but eventually, it'll be gone. And then you wish you had made this carrot mug cake for 2 instead.
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Why This Recipe Works
It is easy and quick. The great thing about this keto carrot cake is that you can tuck in ten minutes after thinking "Hey, I fancy a carrot cake!" Also, you don't need any fancy equipment. A bowl and a fork will do just fine.
Authentic flavor and texture. This cake tastes just like a classic carrot cake. It is rich and buttery, with lovely fall flavors.
Keto, gluten free and sugar free. One portion of cake contains only 6.4g net carbs.
Microwave or oven. If you don't have a microwave, make this cake in the oven or air fryer instead.
Ingredients
Here are the ingredients you'll need for a super healthy microwave low carb carrot cake:
- Carrot - finely grated. I used a box grater
- Egg
- Butter
- Heavy cream
- Almond flour - either super fine almond flour or ground almonds
- Walnuts
- Powdered Sweetener - I used powdered erythritol, but any powdered sweetener works, from monk fruit sweetener to xylitol, allulose or Swerve
- Spices - cinnamon and pumpkin spice mix
- Baking powder
- Cream cheese (for the frosting)
Instructions
This section contains step-by-step instructions and photos that show how to make this recipe. See the recipe card for full information on ingredients and quantities
STEP 1
Mix your dry ingredients - almond flour, cinnamon, pumpkin spice, baking powder, powdered sweetener and crushed walnut pieces.
The walnut pieces are optional, but work perfectly taste-wise. You could sub with hazelnuts. If you have time, dry-roast them in a pan until gently browned. This increases the flavour.
STEP 2
Add the wet ingredients - grated carrot, melted butter and heavy cream.
STEP 3
Stir with a fork until combined. Your batter should be sticky but soft just like in the image above.
STEP 4
Now you have 2 options. Either fill the carrot cake batter into two well-greased ramekins or microwaveable containers (you could even use cups - this is a mug cake, after all). Or use a larger pyrex bowl and make one larger carrot cake for sharing. I microwaved at 800W for 5 minutes.
STEP 5
Wait until the cake is slightly cooled, then turn upside down onto a plate and top with delicious cream cheese frosting. Alternatively, enjoy straight out of the ramekin or mug!
Cooking Methods
Microwave method: I recommend that you microwave the cake at 700-800W. This gives the carrot plenty of time to go nice and soft.
I have also found that if you microwave on high, the cake rises very quickly and might spill over the top of your ramekin. Trust me, you don't want to clean up that mess.
Oven method: If you do not have a microwave, bake the cake at 180 Celsius / 350 Fahrenheit for around 15 minutes or until lightly browned on top. Check with a skewer for doneness.
Air Fryer: Bake at 160C or 320F for 15 minutes.
Top Tips
#1 Measure with digital scales. It's always best if you can weigh your ingredients using a digital scale. You don't have to spend $$$ on one. Mine was cheap and still works perfectly several years on.
#2 If you use measuring cups, make sure you slightly pack the grated carrots.
#3 Use a cup or ramekin that is large enough. The narrower the vessel, the more the cake will rise. Don't fill the batter right to the top or it will overflow while cooking.
#4 Follow the recommendation of cooking at a lower power level!
Egg Free Carrot Mug Cake
You can make this carrot cake without egg. I discovered this by accident when I forgot to add the egg to one of my trial runs. If you choose to omit the egg, add an additional tablespoon of heavy cream to achieve a soft consistency.
The cake won't rise as much without an egg, and I don't recommend turning it out onto a plate (this would only work if the cake is fully cooled, but no guarantees there). But if you're happy to enjoy it straight from the ramekin, give it a go - I thought it tasted great.
In the image below you can see the "egg" version on the left and the cake without egg on the right. In case you're wondering about the colour of the left cake, the egg I used had a VERY orange yolk. I might also have had a heavy hand on the cinnamon for the right cake.
Recipe FAQs
I used powdered erythritol to sweeten my keto carrot cake. There are also many blends out there. Stevia or monk fruit blends are especially popular.
Xylitol or allulose will also work, just make sure you powder it first for a smoother result, especially for the cream cheese frosting.
Yes. Since coconut flour absorbs more liquid than almond flour, you'll need only ⅓ the amount: Use around 30 grams / ¼ cup of coconut flour.
Yes. Readers have tripled and quadrupled the recipe to make a full-sized cake. Bake in the oven for 35-50 minutes depending on size and cake pan (flatter cakes bake faster than taller ones).
Storage
Should you have any leftovers, store the carrot mug cake in the fridge for up to 4 days or freeze for up to 3 months.
More Keto Mug Cake Recipes
More Carrot Recipes
- Sugar Free Carrot Cake Muffins40 Minutes
- Sugar Free Carrot Cake1 Hours 5 Minutes
Tried this recipe? Give it a star rating below!
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Recipe
Keto Carrot Cake For 2
from Sugar Free LondonerNote: The servings slider only changes the first amount in each line and not any subsequent amounts. Please make your own calculations where necessary.
Ingredients
Carrot Cake
- ½ cup / 100g shredded/grated carrot lightly packed
- 1 egg
- 2 tbsp / 28g butter, melted
- 1 tbsp / 15 heavy cream
- ¾ cup / 75g almond flour or ground almonds
- 10 g / small handful walnuts, crushed
- 2 tablespoon powdered sweetener
- 2 teaspoon cinnamon
- 1 teaspoon pumpkin spice
- 1 teaspoon baking powder
Cream Cheese Frosting
- 2 tablespoon full fat cream cheese
- 1 tsp powdered sweetener optional
Instructions
- Mix the dry ingredients - almond flour, cinnamon, pumpkin spice, baking powder, powdered sweetener and crushed walnut pieces - in a small bowl with a fork.Â
- Add the wet ingredients- grated carrot, egg, melted butter, heavy cream. Stir with a fork until a batter forms.
- Fill the carrot cake batter into 2 well-greased ramekins (I used melted butter) or 1 Pyrex glass bowl. Microwave 5 minutes at 800W (or 6 minutes at 700W). See oven instructions in the recipe notes below. Â
- Turn the cake upside down onto a plate and serve with cream cheese frosting (cream cheese mixed with optional powdered sweetener). Decorate with more crushed walnuts and grated carrots. Or eat straight from the ramekin!Â
Rebekah
I know this is designed to be cooked in the microwave, but could you cook it in the oven? If so what temperature & how long?
Katrin
I just had a reader on Facebook who cooked it for 15 minutes and she said that was perfect. I'd go for 175 - 180 Celsius.
Elaina
Well, I've never liked any mug cake until now, I made this tonight and loved every bite! fabulous cake which will now be my go to sweet treat, thank you for sharing xx
Sally Hall
I can't thank you enough! My favourite cake, keto style. We have died and gone to heaven, well done and thank you again!
Katrin
Wonderful! And thank you for trying it out!!
Linda
I have tried a few microwave mug cakes and haven't been overly impressed. This one however was delicious. Very simple using ingredients I always have on hand. After reading the reviews I cooked mine on power level 7 for 6 minutes and they were cooked through and moist.
Katrin
That's great to hear! Thanks for including your cooking time - that's very helpful 🙂
Jean
Hi Trish, I am on the 'other side of the pond', in fact, Chicago. Your carrot cake looks wonderful but what this mean; 1 tbsp double / heavy cream
Do you double the 1 tbsp, then use 2 tbsp? Or something else? Thanks, Jean
Katrin
Hi Jean, someone else just asked me to clarify this too. It's heavy cream I'm talking about. Here in the UK we call it double cream.
Barb
I love this cake!
One thing that would make the printed recipes even better - if you could list the wet ingredients together and the dry ingredients together. It would make it a little easier not to forget adding everything.
Thanks so much for these recipes!
Katrin
Good idea - done!
Cathrina Henriksen Cabrera
Awesome - thank you! I’ll try it this weekend. Thanks again for all the excellent recipes !
Denise Hess
Love, love all your recipes, it helps the low carb/sugar free life livable!!! I did have a little problem microwaving this recipe. Sometimes its a little hard to "Americanize" your recipe. I thought your directions for baking meant 5 min. at power level 8. After 3 1/2 min. I smelled the cake burning and removed. At first I thought I could cut it out; but it continued burning black all the way through...yikes...terrible smell. The second one cooked beautifully for 2 1/2 min. at power level 7. Just thought I mention this in case somebody else struggled with this. Keep those recipes coming...yummy!!
Cathrina Henriksen Cabrera
Hi
Looks delicious. Question; what size ramenkin did you use?
Thanks
Cathrina
Trish
Thank you Katrin for sharing all your recipes, it’s greatly appreciated. You have given me some fantastic staple recipes for my low carb life.
The carrot cake was amazing
Katrin
Hi Trish, this means a lot to me. Thank you for your lovely comment 🙂