Classic White Chocolate Mousse
Submitted by tnkrbelle
Classic white chocolate mousse builds an Italian meringue base with hot sugar syrup, then folds in melted white chocolate and rum-spiked egg yolks. A silky French restaurant dessert.
YIELD
16 servingsPREP
10 minCOOK
20 minREADY
3½ hrsClassic white chocolate mousse is the technical mousse, the proper French restaurant version that takes patience but pays off in a texture nothing else matches: cloud-light, glossy, silken on the spoon. The base is an Italian meringue (egg whites whipped with hot sugar syrup at soft-ball stage), which gives the mousse its stability and structure without any gelatin or whipped cream.
Making the syrup to soft-ball stage (235 to 240°F / 113 to 116°C) is the make-or-break step. Pour it in too cool and the meringue stays soft and weeps; too hot and you get crystallized sugar threads through the mousse. A candy thermometer takes the guesswork out.
The egg yolks go in next, beaten over heat with a tablespoon of white rum until they thicken into a sabayon-like cream. The gentle cooking pasteurizes the yolks for safety and the rum adds a subtle warm complexity that white chocolate begs for.
Folding the melted white chocolate in last is the finish. Use chopped quality couverture white chocolate, not chips. Chips contain stabilizers that prevent smooth melting and the mousse will turn grainy. The chocolate must be cooled to lukewarm before folding or the meringue collapses.
Serve in chilled glasses with a spoonful of cold creme fraiche and a swirl of raspberry puree on top. The acid cuts through the rich sweetness beautifully.
Pro Tips
- Use a thermometer for the sugar syrup. Soft-ball stage by sight takes years of experience to nail consistently.
- Pour the hot syrup down the side of the bowl, not directly onto the whisk. Direct contact with the moving whisk throws sugar threads everywhere.
- Fold gently in three additions: chocolate first into a small portion of meringue to lighten, then back into the rest. Dumping all at once deflates everything.
- Chill at least three hours before serving. The mousse needs that time to set into its proper texture.
Variations
- Substitute Grand Marnier or amaretto for the rum to shift the flavor profile.
- Use dark chocolate (70% cacao) in place of white for a classic dark mousse.
- Layer the mousse with crumbled shortbread and fresh berries in glasses for a textured trifle-style presentation.
Ingredients
Directions
In a saucepan, heat the sugar and water until the mixture forms a softball.
Put the egg whites in the bowl of a mixer, and beat them until medium stiff (beating first on medium, then on high).
Add the sugar and water (soft ball stage) from the saucepan to the egg whites and continue to beat briefly until a stiff meringue is formed.
Place the egg yolks in a metal bowl and beat them overheat with a whisk. Add rum to the egg yolks - still beating over heat.
Fold the egg yolks into the egg whites. Fold the melted chocolate into the egg mixture. Refrigerate for 3 to 4 hours.
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