Water Chocolate Mousse (Just 2 Ingredients!)
This water chocolate mousse is rich, smooth, and surprisingly simple to make. With just two ingredients, no cream, eggs, or chilling required, it’s a quick dessert perfect for any occasion.

Chocolate mousse usually means cream, eggs, or butter, but it’s possible to make a silky, rich version with just chocolate and water. I first tried this technique after reading about French chemist Hervé This, and it quickly became one of my go-to chocolate desserts.
The mousse turns out light, creamy, and full of chocolate flavor. Serve it with fresh berries or a sprinkle of chocolate shavings, but it’s also delicious with whipped coconut cream or orange zest.
Another favorite in my kitchen is this silken tofu chocolate mousse and chocolate avocado mousse, which are dairy-free, egg-free, and just as easy.
Recipe Highlights
- Quick and easy: Ready in under 15 minutes, perfect for last-minute desserts.
- Customizable: Add a splash of liqueur, a pinch of espresso powder, or orange zest for extra flavor.
- Mistake-proof: If something goes wrong, it’s easy to fix.
Key Ingredients & Easy Swaps
- Chocolate: Choose high-quality dark chocolate with at least 70% cocoa solids. Milk or white chocolate won’t give the same mousse-like consistency.
- Water: Use plain water, or replace part of it with brewed tea, coffee, juice, or 1 tablespoon of liqueur such as Grand Marnier, Kahlúa, or Baileys.
See the recipe card below for a detailed ingredient list and step-by-step instructions.
How to Make Chocolate Mousse with Water
- Prepare an ice bath: Fill a large bowl with ice and cold water. Put a smaller bowl inside so the bottom touches the ice water.
- Melt the chocolate: Break the chocolate into pieces and place them in a small saucepan with the water. Heat gently over low heat, stirring until smooth. Don’t let it boil.
- Whip the mousse: Pour the melted chocolate into the bowl over the ice bath. Whisk vigorously until it thickens to a pudding-like consistency. Stop whisking once thick; over-whipping can make it grainy.
- Serve: Spoon into cups or ramekins and add your favorite toppings like berries, chocolate shavings, chopped nuts, whipped cream, or flaky salt.
If your mousse turns grainy, too thick, or too runny, simply melt it again. Adjust with a little more chocolate or water if needed, then whisk over the ice bath until smooth and thickened.
How to Store
This chocolate mousse is best eaten fresh but can be stored in the fridge for up to 3 days. It may get a little thicker when cold, so let it sit a few minutes before serving if you want it softer.

More Chocolate Recipes
- Double Chocolate Muffins
- Eggless Chocolate Cake
- Flourless Chocolate Cookies
- Almond Chocolate Truffles
If you’ve made this water chocolate mousse, leave a comment and rating below. I love hearing how it turned out for you!
Adapted from Molecular Gastronomy: Exploring the Science of Flavor (Columbia University Press, 2008)
How To Make It: 2-Ingredient Chocolate Mousse (No Cream, Just Water!)
Ingredients
- 9.35 oz (265 g) dark chocolate (70% cocoa solids) chopped
- 1 cup (240 ml) water
Toppings (optional)
- Strawberries, raspberries, orange zest, chocolate shavings, crushed nuts, flaky salt, or coconut whipped cream.
Equipment
Instructions
Prepare the ice bath
- Fill a large bowl with ice and cold water. Place a slightly smaller bowl inside so the bottom touches the ice water. Set aside.
Melt the chocolate
- In a small saucepan over low heat, combine the chopped chocolate and water. Stir until melted and smooth. Do not let it boil.
Whisk
- Pour the melted chocolate mixture into the bowl over the ice bath. Whisk vigorously with a hand whisk or electric mixer until it thickens to a pudding-like texture. Be careful not to over-whisk, as it can become grainy.
Serve
- Spoon into cups or ramekins. Top with berries, chocolate shavings, a dollop of whipped cream, or a sprinkle of flaky salt.
Notes
- Chocolate: Use dark chocolate with at least 70% cocoa solids. Lower cocoa content may not set properly.
- Flavor variations: Swap some of the water with tea, coffee, juice, Kahlúa, or Baileys. You can stir in spices like cinnamon or a bit of sugar for a sweeter mousse.
- Storage: Best enjoyed fresh. Keep leftovers in the fridge for up to 3 days. It may thicken slightly after chilling.
- Troubleshooting consistency:
- Not thickening? Remelt the mixture, add more chocolate, and whisk again.
- Too thick or dense? Remelt, add a little more water, and re-whisk.
- Grainy texture? It was likely overwhipped. Remelt and start again.





You know, this is a great dessert! I was a bit skeptical without any eggs or cream/butter, but it worked beautifully! Very easy to make, a fantastic dessert if all you’ve got is a bar of dark chocolate in the house but you want a proper dessert. Definitely will make again 🙂.
So glad you enjoyed it, Josie! Thanks for trying it 🙂