I found this recipe years ago in the Bouchon cookbook by famed chef Thomas Keller. It is somewhat of a “chef-y” recipe with melting chocolate over a double boiler, whipping egg whites, and whipped cream. But if you follow the tips I outline below, you should have success with the recipe and a beautiful, luscious chocolate mousse dessert.
Best Chocolate for Chocolate Mousse
If you want a truly chocolate-y chocolate mousse, use a bittersweet dark chocolate, anywhere from 62% to 70% cocoa. For this chocolate mousse I’m using the darkest chocolate I could find (Trader Joe’s has some Belgian 70% cocoa 1 pound bricks). If you are going to serve the mousse straight–with no added cream or fruit–and you love the taste of barely sweet dark chocolate, your mousse will be perfect with the 70%. If you layer in fruit (raspberries complement the chocolate quite well) and or more whipped cream, you’ll want either to add sugar or use 62% bittersweet chocolate.
Tips for Chocolate Mousse Success
Chocolate mousse can be a little bit tricky! Here are some tips to help you be successful with this recipe:
Gently melt chocolate: Melt chocolate over barely simmering water in a double boiler. You can set up a double boiler by placing a metal bowl over a saucepan with barely simmering water (don’t let the bowl touch the water.) If you don’t use a double boiler, the chocolate can break or separate.Cool chocolate until barely warm: Once you’ve melted the chocolate with the butter and espresso, you’ll want to cool it until it is barely warm when you dab some on your lower lip. That will be the right temperature for adding the egg yolks. Too warm and the eggs will cook. Too cool and the chocolate will seize up when you add the other ingredients.Separate eggs when cold, but whip at room temp: Eggs separate easiest when they are right out of the fridge. But egg whites will whip more easily when they are room temp. So separate the eggs first, and then let them sit at room temp for several minutes.Clean equipment for whipping egg whites: Egg whites will refuse to whip properly if there is any residual fat in the bowl or bowl beaters you are using, or if there are any bits of egg yolk that made their way into the whites. So make sure you are using very clean equipment, and you have picked out any bits of egg yolk that may be in the whites.Fold, don’t stir, egg whites and whipped cream: Gently fold egg whites and whipped cream into your chocolate mousse and your mousse will be fluffy.
Raw Eggs in Chocolate Mousse: You Have Options!
This classic chocolate mousse recipe uses raw egg whites and raw egg yolks. For most people this is not an issue, but people with compromised immune systems, pregnant women, very young or old people, should avoid raw eggs due to the risk of salmonella. You can buy pasteurized eggs at the store if you feel uncomfortable using raw eggs in this recipe. You can even adapt this recipe using our procedure to pasteurize eggs at home. You might also try this recipe for Vegan Chocolate Pudding.
A Make-Ahead Dessert
Chocolate mousse is best if chilled at least 8 hours or up to 24 hours before serving. This makes it the perfect make-ahead dessert.
How to Serve Chocolate Mousse
While chocolate mousse is just fine all on its own, you can fancy it up by adding a dollop of whipped cream to each dish before serving. You can also layer the mousse with raspberries and whipped cream; if you do this, serve it in glasses so you can see the pretty layers when you serve.
More Decadent Chocolate Desserts
Homemade Chocolate Truffles Chocolate Fondue Chocolate Ganache Torte Easy Chocolate Cream Pie Double Chocolate Cupcakes
Recipe adapted from Bouchon. Remove the chocolate mixture from the heat and let it cool until the chocolate is just warm to the touch. Don’t let the chocolate get tool cool or the mixture will seize when the other ingredients are added.
