The chocolate mousse recipe
for your table
Chop the chocolate and melt it over a pan of gently simmering water or in the microwave in twenty-second bursts. Remove it from the heat as soon as it is almost melted and stir the rest smooth with the residual heat. Then let it cool back down to lukewarm, around 35 degrees: on the inside of your wrist, it should feel neither warm nor cold.
Stir the egg yolks into the lukewarm chocolate until the mixture is smooth and glossy. Whip the cream lightly, just until it holds a trace, and fold it in. There’s no point whipping it any stiffer: it will firm up further in the cold chocolate mixture anyway.
Beat the egg white at room temperature in a grease-free bowl with the sugar and salt until soft peaks form that just curl over when you lift the whisk. A drop of fat or a trace of yolk in the bowl will prevent the egg white from rising, so first wipe the bowl with a little lemon juice or vinegar.
Fold the egg white into the chocolate in three additions. Stir the first portion in firmly to loosen the mixture; gently fold in the next two from bottom to top. Spoon the mousse into the glasses immediately and let it set in the refrigerator for at least four hours.
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The story
Chocolate mousse is one of the few desserts that contains almost nothing yet can still go wrong in so many ways, and nearly all of them happen in the minute when the three components come together. Chocolate, egg, and cream each have their own ideal temperature, and the trick is to bring them into the same range at the same time. If you succeed, you have a dessert within twenty minutes that only needs time from there. If you do not, you see it immediately: a grainy mixture or a glass with a moist layer on the bottom.
The right glass
A chocolate mousse does not need to be unmolded, and that is precisely why the glass does the work here: you spoon the mixture in while it is still liquid and let it set in the glass, so there is no mold, knife, or moment of turning it over involved. That makes the size of the bowl the portion size right away, and with dark chocolate containing 60 to 70 percent cocoa, that is smaller than you might think. The wide, low bowl below holds 18 cl, and the description explicitly mentions a portion of mousse as the size at which it looks just right; the low foot lifts it off the tabletop. The second glass is a 16 cl coupette on a tall stem, described as being intended for a small dessert, with a wide shape that shows off a garnish beautifully. Because of the wide opening, you can reach the bottom of both with an ordinary dessert spoon, which is not possible with a tall, narrow glass. More of this bowl shape can be found among the coupette glasses.
La Rochere Coupelle 18 cl Alice (6 pieces)
RCR Melodia Coupette Glass 16 cl (6 pieces)
Both sets together € 60,90.
The right tools
For a chocolate mousse, besides the glass, use a fine grater for chocolate curls over the serving and a fine strainer to sift cocoa over the glass without lumps. These are the bar tools we use ourselves; you’ll find everything in our bar tools & cocktail sets.
Glass set (our choice 01) + 2 bar tools together € 49,85.
What do you serve with it?
Dark chocolate is bitter and rich, so it calls for something with body alongside it. A glass of whisky with some oak aging works well, as does cognac, while among wines, a full-bodied red wine holds up best. On each drink page, you’ll find the alcohol percentage, what it tastes like, which cocktails it pairs with, and which glass you need.
Variations & twists
No egg? You can use aquafaba instead: whip the liquid from a can of chickpeas as you would egg whites. It foams in the same way and replaces the egg whites one-to-one, although the mousse remains slightly less firm, so it’s best eaten the same day. A pinch of espresso powder in the melted chocolate deepens the cocoa flavor without making it taste like coffee, while a strip of orange zest or a few grains of coarse sea salt over the serving add contrast. For a lighter texture, increase the proportion of egg whites and leave out the cream. Looking for more inspiration? Browse more than 100 cocktail recipes.
Serving tip
Take the glasses out of the refrigerator fifteen minutes before serving, because straight from the fridge you cannot taste half the cocoa. Just before serving, grate some dark chocolate over them so the curls stay crisp. A spoon with a narrow head works better than a wide dessert spoon: you scoop through all the layers instead of just taking off the top.
Good to know
Why must the chocolate be exactly lukewarm?
Because it has to do two things at once: remain fluid enough to mix and cool enough to keep the airy egg white intact. If the chocolate is too hot, the egg-white foam collapses and the mixture becomes runny. If it is too cold, the cocoa butter starts to set as soon as it touches the cold egg white, giving you grains and lumps that can no longer be stirred out. Around 35 degrees is the middle ground; it feels neutral on the inside of your wrist.
Why must the egg white be at room temperature and the bowl free of grease?
Egg white at room temperature is thinner, whips faster, and takes on more air than egg white straight from the refrigerator. Fat works in exactly the opposite way: a trace of yolk or a greasy film in the bowl disrupts the egg-white network, leaving the foam low and causing it to collapse again. So wipe the bowl and whisk with a little lemon juice or vinegar and dry them thoroughly.
Why do you fold in the egg white in three batches?
You sacrifice the first portion: stir it firmly into the thick chocolate mixture to make it looser and smoother. Then you can gently fold in the second and third portions without having to press, preserving exactly the air you want to keep. Fold from the bottom up and stop as soon as you no longer see any white streaks.
What effect does a higher cocoa percentage have on the firmness?
A higher cocoa percentage means more cocoa solids and less sugar, so the mousse sets more firmly. At 60 to 70 percent, you get a smooth mousse that falls from the spoon. Above 80 percent, it becomes noticeably firmer and more bitter, so it is worth whipping a little more sugar into the egg white. Below 50 percent, it is softer and sweeter.
How long should it stay in the refrigerator, and how long does it keep?
Allow at least four hours for the mousse to set in the refrigerator, though overnight is better. Covered, mousse made with raw egg whites keeps for two days in the refrigerator. Do not store it next to strongly scented products, as fat readily absorbs odors.
Raw eggs: what should you pay attention to?
The egg whites go into the mousse raw. Use fresh eggs, keep them refrigerated, and make the mousse on the day you open them. It is best to avoid raw eggs for pregnant people, young children, older adults, and people with weakened immune systems; the aquafaba version below is an alternative.
Frequently asked questions
How warm can the chocolate be when you mix it with the egg whites?
Lukewarm, around 35 degrees. If the chocolate is hotter, the whipped egg whites will deflate and the mousse will become runny. If it is colder, the cocoa butter will solidify as soon as it touches the cold egg whites, making the mixture grainy and lumpy.
Which chocolate do you use for chocolate mousse?
Dark chocolate containing 60 to 70 percent cocoa produces a smooth mousse with plenty of flavor. A higher percentage means more cocoa solids and less sugar, making the mousse firmer and more bitter; in that case, beat a little more sugar into the egg whites.
How do you make chocolate mousse without eggs?
With aquafaba, the liquid from a can of chickpeas. Whip it like egg whites, and it replaces the egg whites one-to-one. The mousse will be slightly less firm than with egg, so it's best eaten the same day.
How long does chocolate mousse need to set?
Refrigerate for at least four hours, though overnight is better. Spoon the mousse directly into the glasses in which you will serve it, so you won't need to unmold anything and the airy texture stays intact.
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