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Home » Recipes » Cake Recipes

Best Chocolate Mousse Cake

Published: Jun 6, 2021 · Modified: Nov 1, 2022 by Chef Dennis Littley

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If you’re looking for the ultimate chocolate dessert, my Chocolate Mousse Cake with Chocolate Mousse Mascarpone Frosting is just what you’re looking for!

slice of chocolate mousse cake being taken out of whole cake


 

I made this incredible chocolate cake (using my olive oil chocolate cake recipe) with ribbons of rich indulgent chocolate mousse in between the layers, can you say decadent?

overhead partial view of Chocolate mousse cake

But I didn’t stop there. Instead of just using the mousse for the frosting I decided to blend some mascarpone cheese into it! What I got was a light creamy version of the mousse, that didn’t overpower the cake.

If you’re a serious chocolate lover, you’re going to love my Flourless Chocolate Cake.

Table of Contents:
  • Ingredients to make a Chocolate Mousse Cake
  • How Do I make a Chocolate Mousse Cake?
  • How do I make chocolate mousse?
  • How do I make the chocolate mousse mascarpone frosting?
  • How to assemble the Chocolate Mousse Cake
  • More Recipes You’ll Love!
  • Recipe: Chocolate Mousse Cake

Ingredients to make a Chocolate Mousse Cake

overhead view of ingredients to make recipe

Let’s start by gathering the ingredients we need to make my Chocolate Mousse Cake with a Mascarpone Mousse Frosting. In Chef Speak this is called the “Mise en Place” which translates to “Everything in its Place”.

Not only does setting your ingredients up ahead of time speed the up cooking process, but it also helps ensure you have everything you need to make the dish.

How Do I make a Chocolate Mousse Cake?

collage showing how to make cake

Start by preheating the oven to 350ºF.

  • Mix the flour, sugar, cocoa, baking soda and salt together in a large bowl.
  • With your mixer on low speed beat in the oil, vinegar, vanilla, and water until smooth.
  • Divide the mixture into the three 9″ prepared pans, coated with butter and dusted in flour or sugar.
collage showing finished cake

Bake for 30 minutes or until a cake skewer inserted in the center of the cake comes out clean. Do not over bake the cake. It should be firm to the touch, and a cake skewer inserted in the middle of the cake should come out clean.

Put the cake pans on cooling racks and cool for 15 to 20 minutes before removing the cakes from the pans to cool completely

How do I make chocolate mousse?

collage showing how to make mousse

While the cake is baking or before hand, make the chocolate mousse.

  • Place the chocolate in a stainless steel bowl, over a pot of simmering water, stir with a rubber spatula as the chocolate melts, if the pan starts to get too hot, remove it from the heat.
  • Continue to stir the chocolate until it has melted completely, then remove from the heat.
  • Cut the butter into 8 pieces and mix it into the melted chocolate until it has been completely absorbed by the chocolate.
  • Set the chocolate aside to cool to room temperature
collage showing how to make sabayon

When the chocolate has been prepared, the next step is making the sabayon for the chocolate mousse.

  • add the egg yolks to the bowl of your mixer and begin to whip them until doubled in size.
  • then begin to slowly pour the sugar in a steady stream into the yolks. Continue to whip for another minute.
  • add the liquid to the egg yolk mixture and place the mixing bowl over a pot of simmering water and whisk the yolk mixture until it becomes very thick.
  • When the egg yolks have thickened, continue to whip in your stand mixer until the mixture has cooled.
collage showing how to finish making chocolate mousse

The final step in making the chocolate mousse is making the whipped cream and combing the ingredients.

  • when the sabayon has cooled, fold it into the chocolate mixture until well blended.
  • Whip the cream in your stand mixer until it holds its shape, then fold it into the chocolate mixture.
  • Cover with plastic wrap and refrigerate until set.

How do I make the chocolate mousse mascarpone frosting?

collage showing how to make frosting

Divide the prepared chocolate mousse into two portions. use one half of the mousse to make mascarpone frosting.

  • Whip the room temperature mascarpone to make it smooth.
  • Add the chocolate mousse to the whipped mascarpone and continue to whip until smooth.
  • Refrigerate until needed

*if the frosting hardens up too much by being refrigerated use a hand mixer or wire whisk, to re-whip the frosting smooth.

How to assemble the Chocolate Mousse Cake

collage showing how to assemble cake

When the cake has completely cooled, you can now begin assembly.

  • start with one layer, then add one-half of the chocolate mousse (not the frosting) to the layer spreading evenly.
  • top the first mousse-filled layer with the second layer and repeat the process.
  • add the final layer to the cake.
chocolate mousse cake on a cake stand
  • when the layers have been set, start frosting the cake using the mascarpone chocolate mousse frosting, spreading evenly.
  • top with raspberries and refrigerate for 1 hour to allow to set up

My Chocolate Mouse cake did not disappoint, it was rich and chocolaty without being overpowering. I enjoyed mine with a tall glass of ice-cold milk, but it would also go great with a good cup of coffee.

slice of chocolate mousse cake with bite taken out

If you’re planning a party and looking for that special dessert to wow the crowd,  I can recommend this cake, your guests will be in chocolate heaven, all begging for the recipe!

It would also make the perfect birthday cake for that chocolate lover in your life, but you don’t really need an excuse to make this deliciously decadent cake………. after all it’s Chocolate!

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slice of chocolate mousse cake being taken out of whole cake

Chocolate Mousse Cake

Chef Dennis Littley
If you’re looking for a chocolate dessert, my Chocolate Mousse cake with Chocolate Mousse Mascarpone frosting is sure to please! Can you say decadent!
5 from 41 votes
Print Recipe Pin Recipe
Prep Time 45 minutes mins
Cook Time 30 minutes mins
Total Time 1 hour hr 15 minutes mins
Course Dessert
Cuisine American
Servings 16
Calories 717 kcal

Ingredients
 
 

Chocolate Olive Oil Cake

  • 3 cups all purpose flour
  • 2 cups sugar
  • 6 tablespoons cocoa
  • 2 teaspoons baking soda
  • ½ teaspoon salt
  • ¾ cup extra virgin olive oil
  • 2 tablespoons white vinegar
  • 1 tablespoon vanilla extract
  • 2 cups cold water

Chocolate Mousse

  • 13 oz bittersweet or semisweet chocolate finely cut
  • 6 tablespoon butter softened
  • ½ cup sugar
  • 6 egg yolks
  • ¼ cup strong black coffee or espresso
  • ¼ cup Kahlua
  • 3 cups heavy cream

Chocolate Mousse Mascarpone Frosting

  • 8 ounces mascarpone
  • ⅓ of chocolate mousse

Assembly

  • 1 pint raspberries

Instructions
 

Chocolate Olive Oil Cake

  • Preheat the oven to 350ºF.
  • Mix the flour, sugar, cocoa, baking soda and salt together in a large bowl. With your mixer on low speed beat in the oil, vinegar, vanilla, and water until smooth. Pour the mixture into the 9″ prepared cake pans, coated with butter and dusted in flour or sugar.
  • Bake for 30 minutes or until a cake skewer inserted in the center of the cake comes out clean. Do not over bake the cake. It should be firm to the touch, and a cake skewer inserted in the middle of the cake should come out clean.
  • Put the cake pans on cooling racks and cool for 15 to 20 minutes before removing the cakes from the pans to cool completely

Chocolate Mousse

  • Place the chocolate in a stainless steel bowl, over a pot of simmering water, stir with a rubber spatula as the chocolate melts, if the pan starts to get too hot, remove it from the heat.
  • Continue to stir the chocolate until it has melted completely, then remove from the heat.
  • Cut the butter into 8 pieces and mix it into the melted chocolate until it has been completely absorbed by the chocolate.
  • Set the chocolate aside to cool to room temperature
  • Sabayon
  • add the egg yolks to the bowl of your mixer and begin to whip them until doubled in size, then begin to slowly pour the sugar in a steady stream into the yolks. Continue to whip for another minute.
  • add the liquid to the egg yolk mixture and place your mixing bowl over a pot of simmering water and whisk the yolk mixture until it becomes very thick.
  • When the egg yolks have thickened, continue to whip in your stand mixer until the mixture has cooled.
  • when the sabayon has cooled, fold it into the chocolate mixture until well blended.
  • Whip the cream in your stand mixer until it holds its shape. Take your time whipping the cream, rushing it will cause it to deflate.
  • Fold the whipped cream into the chocolate mixture.
  • Cover with plastic wrap and refrigerate until set.

Chocolate Mousse Mascarpone Frosting

  • Divide the prepared chocolate mousse into two portions. use one half of the mousse to make mascarpone frosting
  • Whip the room temperature mascarpone to make it smooth.
  • Add the chocolate mousse to the whipped mascarpone and continue to whip until smooth. Refrigerate until needed
    *if the frosting hardens up too much by being refrigerated use a hand mixer or wire whisk, to re-whip the frosting smooth.

Assembly

  • Place one of the cakes on your cake stand or dish. Add one-half of the chocolate mousse (not the frosting) to the layer spreading evenly.
    Top the first mousse-filled layer with the second layer and repeat the process.add the final layer to the cake.
  • When the layers have been set, start frosting the cake using the chocolate mousse mascarpone frosting spreading evenly.
  • Top with raspberries and refrigerate for 1 hour to allow to set up.
  • slice cake, serve and enjoy!

Nutrition

Calories: 717kcalCarbohydrates: 63gProtein: 7gFat: 48gSaturated Fat: 24gCholesterol: 161mgSodium: 281mgPotassium: 269mgFiber: 5gSugar: 36gVitamin A: 1105IUVitamin C: 8mgCalcium: 87mgIron: 3.3mg
Tried this recipe? Pin it for Later!Mention @askchefdennis or tag #askchefdennis!

Comments

    5 from 41 votes (14 ratings without comment)

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    Recipe Rating




  1. Char says

    December 06, 2019 at 3:32 pm

    Love your tiramisu recipe! This recipe caught my eye…but I’m a bit skeptical about 6 tbsp of cocoa being enough to darken and flavour up 3 cups of flour. Do u use natural cocoa? Dutch process? Black cocoa? I would love to try this….store bought chocolate mousse cakes just don’t cut it!

    Reply
    • Chef Dennis Littley says

      December 07, 2019 at 10:10 am

      its a lot more than you think. I use natural cocoa powder and most of the time its Hersheys. I’ve been known to purchase Valharona or Ghiradelli as well.

      Reply
    • Kathleen Sartini says

      October 03, 2021 at 10:40 pm

      5 stars
      This recipe came out fantastic! Everyone loved it. The only thing that needs to be fix is the recipe ingredients say heavy cream when it should be heavy whipping cream.

      Reply
      • Chef Dennis Littley says

        October 04, 2021 at 8:56 am

        Kathleen thanks for the great review and I’m happy to hear you enjoyed the cake. There are basically two types of heavy cream, 36% and 40%. Most grocery stores sell 36% which they call heavy whipping cream. The names are basically interchangeable, the only difference being the amount of fat, some of the ones labeled heavy cream may have.

  2. jue says

    December 05, 2017 at 11:30 pm

    Is it alright to omit the butter from the chocolate mousse, because when I add it to the whip cream if tends to curd up and unable to get rid of the curd-ed texture. I tried many times with same result. Where am I going wrong. Thanks for the great recipe.

    Reply
    • Chef Dennis Littley says

      December 07, 2017 at 1:32 pm

      hi Jue

      the butter shouldn’t be clumping up the mixture at all. You can leave out the butter if you like.

      Reply
  3. shan says

    October 23, 2017 at 7:59 am

    will the mas arpone melt as frosting in a tropical country?

    Reply
    • Chef Dennis Littley says

      October 24, 2017 at 6:06 pm

      if it gets too warm yes it can, its best to keep it in the fridge until serving

      Reply
  4. mech_mech says

    January 31, 2015 at 9:01 am

    5 stars
    Thank u so much for this recipe was wonderfull we were on a girl party and they eat all of it saying that the coffee note was emphasing this much chocolate

    Reply
  5. Karen says

    May 31, 2014 at 7:41 am

    5 stars
    Hi. I have just made this for my son’s birthday. The cakes didn’ t rise much, but that worked fine as I just interspersed them with the mousse. I just deviated a little by doing a layer of crushed choc biscuits with melted butter, and then layering condensed milk caramel on top of that, then the mousse, then the cake, more caramel, mousse and cake, finishing with the amazing frosting with ganache swirls. Can’t wait to taste it!! Looks fabulous!

    Reply
  6. lisa says

    June 15, 2013 at 1:18 am

    hi wow nice cakes I really need help my daughter is turning 3 and she loves caramal do you have a nice caramal mousse recipe I could use or any other like chocolate and orange mousse sorry she loves mousse or you could give me some recipes and I could pick from it thank you so much for your help…

    Reply
  7. Magic of Spice says

    June 10, 2012 at 2:57 pm

    5 stars
    This cake looks incredible!

    Reply
  8. Debra Kapellakis says

    June 10, 2012 at 9:19 am

    5 stars
    DECADENT TIMES 2! wow!

    Reply
  9. The Mistress of Spices says

    June 08, 2012 at 10:24 am

    This looks absolutely exquisite! Pure torture for me to be looking at this right now while on a juice fast…

    Reply
  10. Sandy says

    June 07, 2012 at 7:27 pm

    Congrats on Top 9-excellent and this cake has me drooling…you’re killing me…I need another lifetime just to make all of your recipes that I have added to my must try list !

    Reply
  11. Jenn and Seth (@HomeSkilletCook) says

    June 07, 2012 at 1:36 pm

    wow, this looks absolutely amazing! sounds so wonderfully decadent!

    Reply
  12. Ansh says

    June 07, 2012 at 12:55 pm

    5 stars
    Thank you for the recipe and congrats on top 9.

    I was looking for something to lighten my chocolate mousse. I found the solution!! Thanks once again.

    Reply
  13. Elin says

    June 07, 2012 at 12:15 pm

    COngrats on Top 9!!!! Well done Chef Dennis!!!

    Reply
  14. Mei-i@gastronomic nomad says

    June 07, 2012 at 10:56 am

    So decadent! I love chocolate mousse and mascarpone. Perfect special occasion cake. What is the purpose of white vinegar exactly?

    Congrats on top 9!

    Reply
    • Chef D says

      June 08, 2012 at 10:01 pm

      when you don’t use eggs in cakes or cookies, you can use vinegar with baking soda to get a chemical reaction to help make them rise. You never taste it at all.

      Reply
  15. Brooks says

    June 07, 2012 at 10:50 am

    5 stars
    Bravo Chef, and congratulations on the Top 9!

    Reply
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My name is Chef Dennis Littley, creator and owner of Ask Chef Dennis Productions. As a classically trained chef with 40+ years of experience in the kitchen, I share my time-tested recipes, knowledge, and chef tips to help you create easy-to-make restaurant-quality meals in your home kitchen.

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