Recipe

Hervé This' Chocolate Mousse

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Hervé This' Chocolate Mousse

Photo by James Ransom

Slideshow
  • Chef

    Genius Recipes's Notes: It took a brilliant, adventurous chemist to discover the simplest way to make chocolate mousse at home. Hervé This, the father of molecular gastronomy, discovered how to make a flawless, creamy...

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Serves 4

3/4 cup (6 ounces) water Ask a question about this ingredient

8 ounces chocolate (we used 70% bittersweet — choose a high quality chocolate you love) Ask a question about this ingredient

ice cubes Ask a question about this ingredient

whipped cream for topping (optional) Ask a question about this ingredient

  1. Simply pour water into a saucepan (which will be improved from the gastronomic point of view if it is flavored with orange juice, for example, or cassis puree). Then, over medium-low heat, whisk in the chocolate. The result is a homogenous sauce.

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  2. Put the saucepan in a bowl partly filled with ice cubes (or pour into another bowl over the ice -- it will chill faster), then whisk the chocolate sauce, either manually with a whisk or with an electric mixer (if using an electric mixer, watch closely -- it will thicken faster). Whisking creates large air bubbles in the sauce, which steadily thickens. After a while strands of chocolate form inside the loops of the whisk. Pour or spoon immediately into ramekins, small bowls or jars and let set.

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  3. Note: Three things can go wrong. Here's how to fix them. If your chocolate doesn't contain enough fat, melt the mixture again, add some chocolate, and then whisk it again. If the mousse is not light enough, melt the mixture again, add some water, and whisk it once more. If you whisk it too much, so that it becomes grainy, this means that the foam has turned into an emulsion. In that case simply melt the mixture and whisk it again, adding nothing.

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  4. Serve immediately, or refrigerate. Top with whipped cream if desired.

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29 Comments on Hervé This' Chocolate Mousse

F_flamingo_twitter Reply

Inspired by this post, I made this Chocolate Orange Mousse Torte, that's kosher for Passover, dairy-free, and gluten-free: http://flamingomusings.com/2012/04/passover-chocolate-orange-mousse-torte.html. Turned out so great!

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I'm interested in this and will probably try it, but to be perfectly honest it sounds too rich to me. Julia Child's mousse is too rich for me, so I imagine this would be over the top; however, having said that, I make a chocolate torte from Lora Brody, which is delicious and very rich - not to be eaten without whipped cream - and I love it.

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I saw this recipe last night and decided to try it. I didn't think it would work because I am in Jamaica and my kitchen tends to be warmer than most. I thought the bowl of ice wouldn't be enough to cool the chocolate, so I threw my metal bowl in the freezer for awhile just to ensure I could maintain a certain temperature. It came out perfectly. I substituted half of the water with amaretto liqueur and topped with whipped cream and a dash of cinnamon. Talk about death by chocolate....My family and I are sold and ready to experiment with different liqueurs and toppings. Thank you Thank you Thank you....from a true chocoholic

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Never dreamed this would work, but, wow, did it ever! Replaced 1 1/2 - 2 TB of the water with Navan Liqueur and followed directions for melting. Began whisking by hand and, although it really didn't take long to thicken up, I thought my arm would fall off! Wasn't quite sure when to stop, apparently it was just long enough. Served with sweetened whipped cream to which I added more Navan............Ymmmmm!!!

La_gerbe_detail Reply

I made it for a Valentine's Day treat for my husband and 2.5 year old son! I used 62% Cacao Semisweet Chocolate from Scharffen Berger, whisked until the chocolate suddenly went thick and light (it took just a few minutes with an electric whisk), scraped it into ramekins and put them to chill in the fridge. I regretted the latter step, I have to say, chilling the mousse even for 30 minutes or so hardened it. It was still delicious, especially with vanilla whipped cream, but it was nicest at room temperature immediately after I made it. My husband and son

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I made this today too. But, it was a bit of a disappointment...Made at about 4pm and served about 7pm - hard as a rock. Bummer. I did garnish with whipped cream and a few slices of fresh strawberries.
I'm going to try again, but next time I will a) use a less intense dark chocolate (used Trader Joe's 85% Dark - too bitter) and b) serve shortly after I make it.
I love the simplicity of the dessert, but I think I could have used more detail in the directions.

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I made this today for my wife. I used straight water and an electric mixer. Richest mousse I've ever had. I made it at 3:00 and ate it at 7:00 it had "set up" but the air bubbles kept it from getting too hard. I'd say eat within an hour of finishing the whipping for best results. We made 4 servings, I'm a big guy and had to force myself to finish it. The chocolate was intense, rich, I felt like I was about to enter a diabetic coma when I'd finished. Yes I'd made whip cream to top, it was too rich without the cream on top.

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Well I couldn't believe this would work but in the interests of science :) decided to give it a try. Only made half the recipe as I plan on eating it all myself. SO EASY! I almost skipped supper but I'm fixing that now & will eat this after. It's in the fridge but I did lick the beaters. Once it was in the ice bath I used an electric hand beater & it took about another 3-4 mins, but you can stop at any time as soon as it's stiff enough for your liking.

13da35b_1_2_ Reply

I halved the water with Kirsch Liqueur and used 60% (all the store had left). Easy and Delish! Over wisked the first time so re-melted and got it perfect!

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Instead of stevia (which I find has a whang to it) or diet sweeteners (which have nasty chemicals and subvert your desire to lose weight), may I suggest blue agave syrup, which is delicious, low on the glycemic index, and safe for diabetics; it doesn't take much. You can buy it at Costco.

F_flamingo_twitter Reply

Why are you all making this so complicated? Put the water in a pot over medium heat, add the unmelted</> chocolate, and stir till it's melted and makes a smooth sauce. Ice bath, whisk, and poof! Mousse!

I used Scharffen Berger 68% that I treated myself to at Xmas, and have been saving for a special occasion. Not being much of a hand-whisker, I used the number 1 setting (lowest) on my KA stick blender, using the whisk attachment, adding 1 Tbs. sugar & a splash of Kahlua. Yummers! Refrigerating now & going to be V Day dessert tonight! Thank you!!!

F_flamingo_twitter Reply

I neglected to mention that, since I didn't want to break into a third bar of chocolate (they come in 3 oz bars), I used 6 oz chocolate to 4 oz water. Worked perfectly!

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Amen RJ!!!!!! The water keeps the chocolate from burning--particularly if you use a medium low burner setting. A little stir every once in awhile and in 5-6 minutes viola--melted chocolate ready for the ice bath and mixer.

Crab_balls Reply

This recipe is outrageously simple and delicious! Added a shot of grand marnier and a dash of salt and am looking forward to earning major husband points when I break this dish out on Valentine's Day/ Thanks Genius Recipes!

Dsc_0122 Reply

Genius?? this?? Its WAAAY beyond that, its sheer madness, insanity.. (evident by the way its making me Rave.. n'est ce pas??), I whipped up some with left over chocolate from making truffles, with some caramelized pineapple & topped with grains of Thai ginger salt..

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Thanks Kristen for this great recipe. However, I would like to modify it for diabetics by using 100% unsweetened chocolate and then sweeten it using erythritol and/or stevia. Anyone know how to do that?

F_flamingo_twitter Reply

I generally use xylitol for my sugar- free cooking and baking, now. It measures 1:1 for sugar, tastes, and behaves like sugar. It's also diabetic-safe. I suggest adding it in during the initial cooking stage, to your taste, then proceed with the rest of the procedure.

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I wonder whether this same procedure would work for white chocolate? Also, I have some Taza chocolate Mexicana, which does not have lecithin but has intense flavor and less sugar. I wonder whether there's an ingredient (other than cream) that would provide the emulsifying element?

Internet_pic Reply

In the art world they say "less is more".
Thank You for proving the point so clearly!
Fantastique!

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When it says "let set," does this mean refrigerate? Or is it ready to eat once the whisking's done?

Miglore Reply

Sorry I missed this question! It's ready to eat as soon as it thickens to a consistency you like. Just know that it will continue to set up as it finishes cooling.

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I just made this, it took about 5 minutes and is impossibly delicious. I even hand-whisked which I almost never do as it is usually a pain. I used Guittard bittersweet chocolate wafers. This is definitely going in the "greatest hits" roster. Thank you so much!!!

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In response to the heat questions below - As a retired chocolatier, I've been making chocolates for years. Now that I no longer have big, fancy machines to melt and temper my chocolate for me, when I need to melt chocolate I use (gasp) the microwave!

I melt on 30% power setting in sessions of .5 - 3 minutes. 3 to get going (if over a lb. of chocolate) and then shorter and shorter. Melt, remove bowl, wait a 1 minute or so, stir and repeat until all is melted. Remember, working (dark) chocolate temperature, when tempered, is about 89* +/-, depending on the chocolate so the temperature does not need to be very high. 89* chocolate will feel cool if touched to your skin just below your lower lip.

Chocolate can be deceptive when it is in the microwave. It does not necessarily lose its form, which is why it's important to remove it and stir. Also - Check that the bowl you are melting in is truly microwave safe. Some glass bowls really heat up and continue to warm the chocolate, another reason why the stirring and waiting is important.

When you remove the chocolate from the microwave, give several good long stirs. Spread that heat and melt around. At the beginning, you want to coat the un-melted bits with the melted bits, to really get things going and make sure you have even heat. Hot spots are bad, bad, bad.

Be sure to use a thermometer! I use an infrared one. Its worth its weight in gold, in my opinion. But a glass or an instant read one works just as well. If you want to be sure that all of the crystals in chocolate have well and truly melted, shoot for between 115* and 120* but NOT OVER 120*. If you have accidentally crept over 120* then stir, stir, stir, to cool down and you can probably save the chocolate.

For this recipe, where the chocolate and water are heated together, you will likely get best results with well chopped chocolate, even if it is already in "discos". Just heat in the microwave, as above, until all is melted and smooth. Stir in a small circle in the middle, with the whisk, until emulsification starts (begins to look like mayonnaise) and then expand to bring in more and more until all is emulsified and homogeneous.

Then just follow the rest of the recipe.

Bon Apetit & I hope this helps!

Dsc00859_2 Reply

Yes, please tell us whether direct heat & at what level?

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Thanks for asking! I just clarified the recipe. Honestly, This doesn't go into much detail, but the recipe is so forgiving that it doesn't matter. I just made sure not to crank it up high enough to burn the chocolate before it melts.

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Okay but this recipe says nothing about using any heat to melt the chocolate or what heat it should use. Am I reading this wrong?

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I had the same questions - if you look at the slide show it says a few minutes of simmering and stirring, no double boiler needed.

Profile Reply

This looks like about the easiest chocolate dessert ever -

Wedding_pictures_162 Reply

Yay--you did it!

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