France · French
French Chocolate Mousse (Mousse au Chocolat)
The classic French dessert in its purest form: intense dark chocolate lightened with whipped egg whites into an airy, cloud-like mousse. Just a few ingredients, no cream, and no cooking — only good chocolate and a little technique.
Published June 20, 2026
Cultural context
Mousse au chocolat is a cornerstone of the French dessert repertoire, beloved in bistros and home kitchens alike for turning a little good chocolate into something ethereal. It's a natural star of the Salon du Chocolat — the world's largest chocolate event, held annually in Paris and other cities — where chocolatiers and pastry chefs celebrate cacao in every form imaginable.
Mousse au chocolat is one of the great French desserts and one of the simplest: good dark chocolate, eggs, a little sugar and butter, whipped into something light enough to eat by the cloud. There’s no cream, no gelatin, and almost no cooking — which is exactly why it’s a fixture of the Salon du Chocolat, the giant Paris chocolate festival where the spotlight is squarely on the cacao itself.
With so few ingredients, two things matter: the chocolate, and the air.
The chocolate is the flavour
Because there’s nowhere to hide, use the best dark chocolate you can — something in the 60–70% range, with a flavour you actually enjoy eating on its own. Melt it gently with the butter so it stays glossy and never scorches, and let it cool to just-warm before the eggs go in, so it doesn’t scramble the yolks or collapse the whites.
The whites do all the lifting
This mousse gets its airiness entirely from whipped egg whites — no cream. So whip them to firm, glossy peaks in a spotlessly clean bowl (any trace of grease or yolk will stop them), and then fold them in with a light hand. Loosen the chocolate with a spoonful of whites first, then fold the rest in gently until no streaks remain. Overmix and you’ll knock out the air, leaving a dense, heavy mousse instead of an airy one.
Chill, and make it ahead
Spoon it into glasses and give it at least three hours in the fridge to set — overnight is even better, which makes it an ideal dessert to prepare in advance. Serve it cold, with a little cream or a few flakes of salt to play against the dark chocolate. (One note: it contains raw egg, so use the freshest eggs, or the cream-based variation if that’s a concern.)
Looking for more festival sweets? Browse the World Festive collection or the full recipe collection.
Ingredients
For the mousse
- 200 g good dark chocolate (60–70%) The flavour is the chocolate, so use the best you can. Chopped, for even melting.
- 4 large eggs, separated At room temperature. Use the freshest eggs (they're not cooked).
- 30 g caster sugar
- 30 g butter For gloss and richness.
- 1 pinch salt
To serve (optional)
- lightly whipped cream, chocolate shavings, or flaky salt
Method
Tap a step’s number to check it off as you go.
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Melt the chocolate with the butter gently — over a bain-marie or in short bursts in the microwave — then let it cool until just warm but still fluid.
Why: Gentle heat stops the chocolate seizing or scorching. Letting it cool slightly prevents it from cooking the egg yolks or deflating the whites.
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Stir the egg yolks and a pinch of salt into the warm chocolate until smooth and glossy.
Why: The yolks enrich the base and give the mousse its silky body. The mixture will thicken — that's normal.
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In a spotlessly clean bowl, whip the egg whites to soft peaks, then add the sugar and whip to firm, glossy peaks.
Why: The whipped whites are the only thing aerating this mousse — no cream — so they must hold firm peaks. Any grease or yolk in the bowl will stop them whipping.
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Stir a spoonful of whites into the chocolate to loosen it, then gently fold in the rest in two or three additions until just combined, with no white streaks.
Why: Loosening first makes folding easier; gentle folding keeps the air in. Overmixing knocks out the bubbles and gives a dense, heavy mousse.
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Spoon into glasses or ramekins and chill at least 3 hours, or overnight, until set.
Why: Chilling firms the chocolate so the mousse sets to its signature airy-yet-spoonable texture. It needs time — don't rush it.
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Serve cold, topped with whipped cream, chocolate shavings, or a few flakes of salt if you like.
Why: A little cream or salt sets off the intensity of the dark chocolate.
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Variations
- Orange or coffee
Add a little orange zest and a splash of Grand Marnier, or a teaspoon of instant espresso, to the melted chocolate for a classic flavour twist.
- Egg-free (cream-based)
If raw eggs are a concern, fold the melted chocolate into softly whipped cream instead for a richer, denser mousse with no raw egg.
- Dairy-free
Use a dairy-free dark chocolate and swap the butter for a neutral oil or coconut oil; the egg whites still do the lifting.
Serving & Storage
Serve chilled in small glasses or ramekins — it's rich, so portions are modest. A dollop of barely sweetened cream, some berries, or a crisp tuile alongside makes it feel like a bistro dessert.
Pairs with: Lightly whipped cream, Fresh raspberries, Espresso, A glass of dessert wine.
Storage: Keeps 3 days covered in the fridge — ideal to make ahead. Not suitable for freezing (the texture turns icy). Note it contains raw egg.
Nutrition
Per serving (1 serving (1/4 recipe))
- Calories
- 340
- Protein
- 8 g
- Carbs
- 26 g
- Fat
- 23 g
- Fiber
- 3 g
- Sugar
- 22 g
- Sodium
- 120 mg
Notable micronutrients: Iron, Magnesium
Estimated using standard ingredient data. Values vary with brands and substitutions.
Frequently Asked Questions
Is it safe to eat raw eggs in chocolate mousse?
Traditional French mousse uses raw egg, lightly 'cooked' only by the warm chocolate. Use the freshest eggs from a trusted source, and pasteurised eggs if serving to anyone vulnerable (pregnant, elderly, very young, or immunocompromised). If you'd rather avoid raw egg entirely, use the cream-based variation.
Why is my mousse dense instead of airy?
Usually overmixing when folding, which knocks the air out of the whipped whites, or whites that weren't whipped to firm peaks. Fold gently just until no streaks remain, and make sure your whites hold firm, glossy peaks first — in a perfectly clean, grease-free bowl.
Can I make chocolate mousse ahead?
Yes — it's a perfect make-ahead dessert. It needs at least 3 hours to set anyway, and holds beautifully for up to 3 days in the fridge. Add any cream or garnish just before serving.
What to drink with this
All drinks →Hand-picked pours to match this dish. Alcoholic pairings are for adults of legal drinking age (21+ in the US) — please drink responsibly.
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