Incredible 1-ingredient chocolate mousse!

No eggs,  sugar, or cream. Just chocolate, whipped into dreamy creamy billowy smooth chocolate mousse. An easy, quick and delicious vegan dessert.

This is an amazing recipe. It has only ONE ingredient. Can you guess what it is? Can you? 

One ingredient 

CHOCOLATE. That’s it. Chocolate mousse made entirely from chocolate. No eggs. No sugar. No cream. No nonsense. Just chocolate, whipped into creamy smooth and deliciously fluffy mousse.

This sumptuous dessert manages to be both rich and light at the same time. And of course incredibly chocolatey! If you love chocolate, this is a heavenly bowl of chocolate mousse perfection. 

Quick and easy

This is my go-to chocolate mousse recipe. Stuck for a dessert? Vegans coming for dinner? There’s always chocolate in the house! Now you can turn it into a sophisticated mousse in a matter of minutes.

1 ingredient magic chocolate mousse.

Perfect for Pesach

This chocolate mousse is also ideal for Pesach. It is a wonderful thing, a Pesach dessert that doesn’t involve any eggs. I think this chocolate mousse would be lovely with some fruit sticks to dip into it. Pear maybe? Crispy apple? Or perhaps some blueberries or raspberries on a little skewer.

Healthy scepticism

If you’re anything like me, you’ll read this recipe and think, “Well, that’s never going to work.” Even now, having made this numerous times, I’m incredulous when it comes together and turns into thick, fluffy chocolate mousse. You just have to believe!

You can watch this video of (a very young) Heston Blumenthal making it, if you want to see the process in action before you try it out yourself. Honestly, it really does work!

1 ingredient magic chocolate mousse.

Quality is everything

One important note – because it only has one ingredient, you do need to ensure that your chocolate is really the best quality and tastes absolutely delicious. You can’t get away with using ordinary cooking chocolate, because there’s nothing for it to hide behind. Whatever chocolate you use, that’s what you’ll taste. I pushed the boat out and made this with premium 70% dark chocolate. It was the business!

This amount made 4 espresso cups of chocolate mousse. A small serving really is plenty.

No eggs. No sugar. No cream. No nonsense! Just chocolate, whipped into dreamy fluffy billowy smooth chocolate mousse. An easy quick delicious vegan dessert!

Want deliciously easy, family-friendly recipes like this one delivered straight to your inbox? Click here to sign up. (Of course, I’ll never pass on your email address to anyone.)

Incredible 1-ingredient chocolate mousse

Course Dessert
Keyword chocolate
Prep Time 10 minutes
Total Time 10 minutes
Servings 4
Calories 109kcal
Author Helen


  • 2 bowls, one of which will fit inside the other with a gap between
  • crushed ice
  • an electric whisk, or a balloon whisk and good arm muscles


  • 75 g dark chocolate (2.6 oz)


  • Break the chocolate into a pan and add 75ml (⅓ cup) water. Heat the mixture until the chocolate has melted and amalgamated with the water into a soupy brown liquid.
  • Put a good handful of ice into the larger of the two bowls, and put the smaller bowl on top of the ice. Pour the chocolate-water mixture into the inner bowl.
  • Whisk like mad for a few minutes, until the chocolate mixture thickens and becomes mousse-like.
  • Spoon into small bowls or espresso cups. Chill for at least an hour, until set. (You can speed up the chilling step by putting the cups of mousse into the freezer, instead of the fridge.)


Approx. per serving: 109 calories, 7g fat, 1g protein, 10g carbs

If you like this, you’ll also love this vegan rich chocolate tart from 3 ingredients (10 mins), or these vegan chocolate orange pudding lollies.

chocolate mousse.

I’m entering this in the Dead Easy Desserts challenge – it doesn’t get much easier than only one ingredient!


  1. I’ve been making this for years, and it’s wonderful! I got the original idea from a Food 52 “Genius Recipe”, amped it up with orange, and use it as a filling for a kosher for Passover dessert torte.

  2. Hey… My mousse didnt thicken… Any idea why?

    • Hi Disha. Sorry to hear the mousse didn’t thicken. I had this happen once because I hadn’t let the chocolate/water mixture fully amalgamate. I reheated it on the stove and then tried again and second time it whipped up perfectly. I hope you have success next time! Thanks, Helen.

  3. My pleasure! Loving all the dessert ideas on Dead Easy Desserts – no excuse for skipping ‘afters’ now 🙂

  4. Never come across this technique before, sounds well worth a bash! Thanks for sending to Dead Easy Desserts!

Leave a Reply

Your email address will not be published. Required fields are marked *