Total Time
Prep 10 mins
Cook 0 mins

This is a choco-holics dream mousse. It is a staple for me. I use it as a filling for cakes, trifles, eclairs and cream puffs or in terrines, or layered in parfait glasses with berries and angelfood cake cubes. Or - just on it's own, in pretty cups. Very rich, very decadent, absolutely delicious. You must use a high quality chocolate in this.

Ingredients Nutrition


  1. NOTE: The flavor of this mousse depends entirely on the chocolate you use.
  2. Please use the highest quality chocolate you can.
  3. DO NOT use Bakers chocolate.
  4. Do not use chocolate chips.
  5. I like Callabeut, but Sharffenberger, Valhrona, Giardelli-- all are options.
  6. DIRECTIONS: melt the chocolate, espresso, and rum in the microwave on 50% power for about 2 minutes.
  7. Stir until smooth.
  8. Whisk in the yolk and mix well.
  9. Set aside.
  10. Using a little dash of vinegar and a paper towel, wipe down the insides of the bowl of your mixer, and the whipping attachment.
  11. Add the whites and whip until soft peaks form.
  12. Sprinkle in the sugar, beating on high until stiff, but not dry.
  13. Fold a quarter of the whites into the chocolate to lighten it, then scrape the remaining whites on top of the chocolate and set aside.
  14. Beat the cream until it holds its shape (not too stiff) then scrape on top of the whites.
  15. Fold everything together gently until no streaks of white appear.
  16. Turn the mousse into your prepared mold, into pretty cups, into custard cups, or whatever you are serving it in and refrigerate until service, at least 2 hours.
  17. Or just refrigerate in the bowl until needed as a filling for cakes or cream puffs, etc.
  18. Note: This mousse is very rich and decadent, and it's my favorite because it holds it shape nicely when refrigerated.
  19. This allows it to be formed into molds and terrines and be sliced or cut.
  20. It is also a great spreading consistency, and my favorite thing to do with this mousse is use it as a filling for cakes.
  21. I also like to fold more whipped cream into it (50% mousse, 50% whipped cream) and use it as a filling for eclairs, cream puffs and profiteroles.
  22. The uses for this mousse are endless.
Most Helpful

5 5

Used Kahlua and Caillebaut chocolate and your recipes like caillebaut are becoming a fixation for me you really put out good stuff Petitfour, I find that you have usually covered the permutations either giving us a lot of possibilities or challenges to draw outside the lines and keep it as good. hmmmm....

5 5

Doubled the cream (for a lighter mousse), used 1 1/2 tsp instant coffee (no instant espresso on hand) and didn't add Grand Marnier (didn't have any liquor on hand) but otherwise followed the recipe. The extra whipped cream created a bit lighter/fluffier texture and the coffee added a nice subtle undertone. I doubled the recipe and got an excellent dessert dish and filling for some crêpes the following morning. Thanks for posting!

5 5

When made as written with 1/4 cup cream, this is the consistency of a chocolate truffle once it sets up in the frig and just as good. I used Bailey's Irish Cream liqueur. Don't forget to add the cream of tartar to the meringue as it's not mentioned in the directions. Scrumptious and, as stated by P4, versatile.