Keto Sugar Free Lemon Dream Mousse


Keto Sugar Free Lemon Dream Mousse: a heavenly dessert with only 3.5g carbs per serving.

Keto Sugar Free Lemon Dream Mousse

Ketohusband has a new favourite. Yep! My Chocolate Tiramisú held the # 1 spot for several weeks, but it has now dropped to # 2. Who’d have thought it! Just like Despacito, it appeared to be insuperable, along with my original and best (in my view) Classic Tiramisú recipe. But oh no. All good things come to an end, and so it did. Keto Sugar Free Lemon Dream Mousse is now the best dessert on the planet. In the ketohusband Official Keto Top 10 Desserts Chart, at least 😀

So why is this dessert such a hit? Well, it ticks all the boxes: Light? √Check. Creamy? √Check. Citrusy? √Check. Pretty? √Check. Refreshing? √Check. Sweet? √Check. Keto-Friendly? √Check. What is there not to like?

I have to admit it. I’m pretty pleased with this one too. Granted, it’s not as low carb as I like my desserts to be. But that’s the price to pay for a citrus based pudding that’s as dreamy, as smooth and as sweet but tangy as this. Keto Sugar Free Lemon Dream Mousse

Easy Peasy Sweet and Dreamy. 

It most certainly is all of the above.  Plus, as an extra bonus, it couldn’t be more simple to make. No cooking or baking involved. No bain-marie. Not even a microwave blast. Zilch. Nada. Rien. Niente. Zero. 

Want to know what’s involved? Cut. Squeeze. Grate. Whip. Mix. That’s IT!!!!!

Then you have to WAIT. Can’t help that. Spoon desserts generally need to set. Whether they’ve been baked or not. So, like it or lump it, you cannot just dive in. Sorry. I know it’s cruel, but you really have to be patient.Keto Sugar Free Lemon Dream Mousse

Jokes aside, the waiting is necessary to allow the mousse to be nicely cold and set, and for the lemon flavour to intensify. Even if you don’t believe me right now, you will when you go and grab the next serving tomorrow and taste the flavour intensity for yourself.Keto Sugar Free Lemon Dream Mousse

Lemons are a most fascinating fruit. Did you know they’ve been used for centuries for all sorts of things, from lip reddening to scurvy treatment and liver cleansing?  Do you know how to tell the good from the bad? Or how to get the most juice out of one? No? I didn’t either, until recently. If you’re interested in learning some weird and wonderful facts about lemons, click here.Keto Sugar Free Lemon Dream Mousse

The Keto Sugar Free Lemon Dream Mousse Recipe.

Best eaten with a tiny teaspoon. To make it last longer. Or eat all 4 portions and no other carbs for the rest of the day… 😉


  • Yield: 4
  • Serving: 1
  • Calories: 457
  • Fat: 48g
  • Net Carbs: 3.5g
  • Protein: 3.3g
Recipe type: Desserts
Cuisine: Ketogenic. Sugar Free. Low Carb. LCHF. Grain Free. Gluten Free.
Prep time: 
Total time: 
A heavenly spoon dessert that you can whip up in minutes with minimal effort. But you'll want to eat it slowly to savour every dreamy morsel.
  1. whip cream until firm but still foamy (not solid) and set aside.
  2. grate lemon zest into a medium size bowl, setting aside a little for decoration; add squeezed juice, lemon extract and icing sugar, stirring well; then incorporate mascarpone and finally fold in whipped cream.
  3. spoon into serving bowls and sprinkle reserved lemon zest over the top.
  4. refrigerate at least 4 hours before serving.
If you can control yourself, leave it in the fridge overnight to intensify the lemon flavour.
It will keep, refrigerated and covered for up to 72 hours.

Metric kitchen scales are an inexpensive yet invaluable gadget to enable accurate measurement of ingredients. Store them upright in a cupboard or over your worktop and they'll only take up a tiny bit of space. Click HERE for the ones I use (UK Link). For U.S. option click HERE.


Enjoyed this post? I really value your feedback! Please leave me a comment. If you make this recipe, make my day and post a photo on social media with the hashtag #queenketo. Thank you! 🙂

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Average rating 5 / 5. Votes: 7


  1. Antya, I just made this mousse with a couple changes (only because I didn’t have some of the ingredients on hand). I subbed the cheese with avocado and the sugar for sukrin gold, wow!! It’s delicious! I’m taking it to my parents house tomorrow for a sweet treat. I’m sure they will love it, even though it’s healthy!

  2. Mrs Lynne A Braithwaite

    Hi Anya,
    Made tiny cases with the custards tart bases & filled them with this Lemon Dream Mousse. Took them to an 18th & came back with an empty plate! They didn’t know they were healthy! Thanks for the recipient – love them!

  3. Marion Robinson

    Good afternoon Antya. just wanted to say thanks for all the info on lovely lemons !
    I roll mine on the counter top, to release the juice, THEN freeze them for a couple of hours.
    It makes it so much easier to grate them.( I also do this with oranges, to make your fabulous
    baked orange custard )
    I use lemon juice & pink himalayan salt, to stop migraines in their tracks.
    Tim ( fellow keto Hubby ) say’s will you please stop writing recipes, where you use the word ” Wait ”
    He can’t cope X

    • Hello Marion, thank you for the lovely tip about citrus fruit, I’m sure the many readers who look at blog comments will also be grateful to you. As for the word ‘wait’, my apologies to your husband 😀

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