This chocolate mousse cake is a favorite in Argentine and Uruguayan bakeries: a moist chocolate cake base covered with a tall layer of light, airy chocolate mousse and finished with grated chocolate. It looks elegant, but it is mostly a matter of whipping cream and waiting for the fridge to do its job.
A little unflavored gelatin helps the mousse hold clean slices without making it rubbery, so the cake is easy to cut and serve at a party.
Why you’ll love it
- Make-ahead friendly: it needs to chill at least 3 hours, so you can make it the day before.
- Few ingredients: semisweet chocolate, heavy cream, sugar, vanilla and gelatin on a chocolate cake base.
- Feeds a crowd: one 9-inch cake gives you 12 slices.
Quick facts
Prep: 35 min
Bake: 25 min
Total: 4 hr
Servings: 12
Estimated cost per serving: $2.05
Ingredients
- 1 chocolate sponge cake layer (9-inch / 23 cm)
- 10.5 oz (300 g) semisweet chocolate
- 2 cups (480 ml) heavy whipping cream
- 2 tbsp powdered sugar
- 1 tsp vanilla extract
- 1 tsp unflavored gelatin
- 2 tbsp water
- Grated chocolate, to decorate
Step-by-step method
-
Prepare the base. Bake the chocolate cake base and let it cool completely.
-
Melt the chocolate. Melt the chocolate and let it cool until just lukewarm.
-
Bloom the gelatin. Sprinkle the gelatin over the water, let it hydrate, then dissolve it gently over low heat.
-
Make the mousse. Whip the cream with the powdered sugar and vanilla, then gently fold in the chocolate and the gelatin.
-
Assemble and chill. Spread the mousse over the cake base, refrigerate at least 3 hours and decorate with grated chocolate.
Tips for the best result
- Measure and prepare all the ingredients before you start.
- Let the melted chocolate cool to lukewarm before folding it in, so it does not melt the whipped cream.
- Respect the chilling time: the mousse needs it to set and slice cleanly.
Storage
Keep leftovers in a tightly closed container in the refrigerator up to 3 days.
Approximate nutrition per serving
About 510 calories per slice. Nutrition is an estimate and varies with brands and portion size.
Leer esta receta en español: Torta Mousse de Chocolate
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