Brownie Mousse Cake at Chasing Delicious

Chocolate Brownie Mousse Cake

Heavy clouds float high above me. They push and prod at the sky, hiding the sun from reaching me miles below them. Cold blasts of wind shake trees bare and scare away the green. Winter brings with it the dull, drab days the beg to be wrapped in handed-down quilts, fluffy sweaters and scarfs of all colors. It also brings with it holidays, get togethers, special meals and birthdays.

This weekend was my mother’s birthday. I baked this for her. We may not get snowy days here in Texas but that doesn’t stop us from having snow-dusted cakes.

Like most of my recipes, this one has quite a few parts – we’ll call it a special occasion recipe. That being said, it is well worth it. The dense brownie-like chocolate cake with the light and fluffy chocolate mousse play so well together. The sweet, chocolate icing brings it all together! If you’re a chocolate lover, then you need to make this cake. Not to mention, the diamond and triangle pattern formed will impress your family and friends. And they don’t need to know how easy it is to do.


Chocolate Brownie Mousse Cake a

y 1 6″ Layer Cake
d Intermediate

t  2 hours

o Tools:

2 cake rounds
Sharp Pointed serrated knife
Icing spatula

i Ingredients:

2 layers Chocolate Brownie Cake (recipe below)
1 pound Chocolate Mousse (recipe below)
1 pound Milk Chocolate Buttercream Frosting (recipe below)

Powdered sugar, for dusting

n Instructions:

1. Bake the cake and prepare the mousse and buttercream and set aside. Store the mousse in the refrigerator.

2. Remove the cake layers from the pans. Place them on 6 inch cake rounds.

2. Using a sharp pointed serrated knife, cut a cone out of the center of both cake layers so that you have a cone-shapped recess in each cake layer. Be sure to leave enough cake around the sides and at the bottom otherwise it may not be able to stand. Also make sure the cones are the same sizes so when assembled a clean diamond mousse filling will form.

3. Fill each recess with the mousse. Use an icing spatula to make the mousse level with the top of the cake.

4. Place the mousse-filled layers in the fridge and let chill until firm, about 1 hour.

5. Remove the layers from the fridge. Carefully invert one layer onto the other, making sure the edges of the cake, and the mousse line up. Remove the cake round from the top of the cake.

5. Ice the cake with the prepared buttercream frosting. Tip: Completely the top of the cake first, then the sides by placing extra icing on the top and moving it down over the sides of the cake. 

6. Dust the top of the cake with powdered sugar for a snow-dusted effect.

r Store in the refrigerator. This cake should last up to a week in the fridge.
a Mix and match your favorite cake batters, mousse fillings and frostings to create any number of diamond cakes. 

Diamond-filled cakes: While this wont work with all fillings and cakes, it works well with fillings like mousse that, when refrigerated, become firm and able to support the weight of the cake on top. Below is a diagram on how to achieve the affect.


Chocolate Brownie Cake: The very high moisture and fat content in this recipe makes a very dense, brownie-like cake. It is normal if the center collapses or does not rise fully.


Chocolate Brownie Cake n

y 2 6″ layers
d Easy

t  1 hour

o Tools:

2, 6″ cake pans
Mixer with the paddle attachment or a bowl and spoon
Bowls & wooden spoon

i Ingredients:

6 ounces all-purpose flour
12 ounces sugar
2 ounces unsweetened cocoa powder
1 teaspoon baking soda
1 teaspoon baking powder
3/4 teaspoon salt
1/2 cup buttermilk
1/2 cup sour cream
3 ounces unsalted butter, melted
1 teaspoon vanilla
3/4 cup hot coffee

n Instructions:

1. Preheat the oven to 350°F. Butter and flour both cake pans. Set aside.

2. Mix the dry ingredients (flour, sugar, cocoa powder, baking soda, baking powder and salt) together. Set aside.

3. Mix the buttermilk, sour cream and melted unsalted butter together.

4. Pour the buttermilk mixture into the dry ingredients. Mix until a thick batter forms.

5. While mixing, add the coffee and vanilla. Mix until the mixture is homogeneous.

6. Pour the batter evenly into the prepared cake pans.

7. Bake the cakes in a preheated oven for 35 to 40 minutes or until a toothpick inserted into the center comes out clean.

8. Let cool before handling.

r Store in the refrigerator. This cake should last up to a week in the fridge.
n Avoid adjusting the ingredients in this recipe 

Chocolate Mousse: Chocolate mousse is fairly easy to make. This recipe, adapted from Bo Friberg, uses boiled honey to cook the eggs and create structure in the mousse. Anytime you melt chocolate, you want to make sure to do it over barely simmering water in a bain marie or a large glass bowl placed over a pot. Take care not to heat the chocolate too much.


Rich Chocolate Mousse n

y 1 pound mousse,  enough for 1, 6″ cake
d Intermediate

t  30 minutes

o Tools:

Mixer with the whisk attachment or Bowls & Whisks
Heavy-bottomed pot
Bain-marie  or a bowl over a pot

i Ingredients:

1 cup heavy cream
2 egg yolks
1 1/2 ounces honey
4 ounces dark chocolate, chopped
2 ounces milk chocolate, chopped
1/2 teaspoon vanilla

n Instructions:

1. Whip the heavy cream to soft peaks. Set aside in the fridge.

2. Heat the honey just to the boiling point.

3. In the meantime whip the egg yolks until they are thick and reach the ribbon stage.

4. While whisking, pour the honey into the egg yolks. Continue to whip the mixture until it is cool and thick.

5. In a bain-marie or a bowl placed over barely simmering water, melt the chocolate.

6. Pour the chocolate into the egg mixture and mix until completely mixed. Add the vanilla and stir in.

7. Fold the chocolate mixture into the whipped cream until completely mixed together. Take care not to overmix or deflate the mousse during this step. 

r Store in the refrigerator. Mousse should be used right away
n Avoid adjusting the ingredients in this recipe though you may use any chocolate you prefer.

Milk Chocolate Buttercream Frosting: Making chocolate buttercream is almost as easy as making buttercream. There is just one extra step of melting chocolate and adding that into the buttercream.  Anytime you melt chocolate, you want to make sure to do it over barely simmering water in a bain marie or a large glass bowl placed over a pot. Take care not to heat the chocolate too much.


Milk Chocolate Buttercream a

y 1 pound frosting enough for 1, 6″ cake
d Easy

t  2 hours

o Tools:

Mixer with the paddle attachment
Bain Marie or a bowl over a pot

i Ingredients:

8 ounces unsalted butter, at room temperature
3 1/2 cups powdered sugar
1/2 teaspoon vanilla
6 ounces milk chocolate, chopped

n Instructions:

1. Melt the chocolate over a bain-marie. Set aside to cool slightly.

2. Beat the butter, sugar and vanilla togther until a thick frosting forms.

3. Pour in the chocolate and mix until the frosting comes together and is evenly mixed.

r Store in the refrigerator or at room temperature.
a Feel free to use any chocolate of your preference. 


AUTHOR - Russell van Kraayenburg

Founder of Chasing Delicious, and author of Haute Dogs, Russell's works have been featured in Southern Living, Men's Fitness, Redbook, TRADHome, and Real Simple magazines and on various sites including Lifehacker, Fast Co., Business Insider, The Kitchn, Live Originally, Quipsologies, Explore, and Fine Cooking. Follow Russell on Twitter @rvank and Instagram. Get more delicious @chasedelicious.


  • Brian @ A Thought For Food

    Absolutely stunning, Russell! You have me drooling.

  • Riley

    That’s my kind of mousse-to-cake ratio! This looks absurdly delicious!

  • Brooks

    Wow! A gorgeous cake Russell, you’ve served your Mother’s birthday with stylish honor. It’s so easy to get lost in your words. Visits here are like a little getaway…time well spent.

  • shelly (cookies and cups)

    This cake is gorgeous..and I can only imagine it is delicious too! I bet your mom loved it!

  • Cassie | Bake Your Day

    This is beautiful. I can’t even get over that mousse.

  • Erika

    Wow! This cake looks Heavenly!!!

  • Stephanie @ Girl Versus Dough

    Ohmahgoodness. I hath died and gone to dessert heaven. This looks AMAZING.

  • Rebecca

    I can’t even. Wow. Well done. Wow.

  • Averie @ Averie Cooks

    Russell – it’s brilliant! The flavors, the intensity of chocolate, the mousse, the texture and layers. The cake stand – love it!! Gorgeous cake! Pinning!

  • Laura (Tutti Dolci)

    That mousse filling looks to-die-for! Gorgeous cake and what a wonderful birthday treat for your mother!

  • Nessie @ bakingequalslove

    Russell, this cake looks like an absolute dream! Just stunning :)

  • Katrina @ Warm Vanilla Sugar

    Whoa. This is all kinds of fabulous. Love that mousse!!

  • ThisBakerGirlBlogs

    Chocolate? Brownies? Mousse? And cake? YES PLEASE!! That looks awesome :)

  • jaime @ sweet road

    It’s beautiful! I’m so envious of anyone who can make a cake that doesn’t look like a blob of frosting just dripping off a cake.

  • Loretta | A Finn In The Kitchen

    Special occasion, indeed! Although I’m pretty sure this cake would make a day special just by being there.

  • Debie Grace

    Looks very delicious!! :)

  • Peggy

    Looks delicious! Have you considered adding a Pinterest link to each post so that viewers can add your recipes to their Pinterest boards? Thanks.

  • Peggy

    Oh my goodness. I feel so stupid. I see the Pinterest link now. I was looking for something red and did not notice it in grey. :(

  • Joanna @ Chic & Gorgeous Treats

    What an awesome rich looking cake. I could list this to be one of my Birthday cake (hint hint :P) My mom’s Birthday was last weekend, and I baked her something too. Have not posted it up just yet. So can you bake me a cake for my birthday? It’s coming up in less than 2 weeks. LOL.. HAPPY BIRTHDAY to your Mom!! xo

  • Sarah

    GOOD LORD. Merry Christmas to all, and to all, go away because I need to be alone with this cake.

  • QQ

    nice…amazing cake =)

  • Spencer

    How awesome! I would so love to try some. I am sure it tastes amazing.

  • Joanne

    Now this is truly a thing of beauty. And for the record, as a northeasterner…I’d take a dusting of powdered sugar over snow any day!

  • Kathy - Panini Happy

    Wow, that is such an incredibly cool effect! Wishing a very happy birthday to your mom! :-)

  • Jeanette

    Wow what a special cake for your mom’s birthday Russell! She is so lucky to have a son like you. I hope one day my boys can bake me a cake as nice as this.

  • Diane (createdbydiane)

    I need this!
    Really, I just love chocolate mousse and well of course I love cake.
    Beautiful photos!

  • thelittleloaf

    You’ve totally outdone yourself here – this looks incredible! Love the hidden segment of mousse inside and all that chocolate? You can’t go wrong :-)

  • Aly

    It makes me think of what other cut outs one could do! Beautiful and yummy looking.

  • Fernanda Oliveira

    I love your blog. Every time I come here I’m delighted.
    This cake is heavenly and very original.
    I’ll take to make Christmas for my famíia
    Happiness and kiss.

  • Kathryn

    I would be pretty happy to live on this cake and this cake alone for the rest of my life. All of my favourite things in one!

  • Carolyn

    Okay, the flipping part freaks me out. That is bound to be where I mess up and get mousse all over the counter! I will just leave such amazing things to you. :)

  • Kiersten @ Oh My Veggies

    I am so jealous of your baking skills. I can hardly get a pan of brownies to turn out right and you’re putting DIAMONDS OF CHOCOLATE MOUSSE(!!!) into your cakes. I might just have to attempt this for Christmas…

  • Paola @

    This looks GORGEOUS- and reading the ingredients I am going to just assume that it also tastes awesome. I really love when cakes have buttermilk.

  • Cheria

    This cake looks decadently delicious! My recipe highlight of the day… Thank you!

  • 5-Minute Chocolate Peppermint Mousse

    […] Chocolate Brownie Mousse Cake […]

  • Sommer@ASpicyPerspective

    RUSSELLLLLL! This cake is a jaw-dropper! And I love that you get to snack on the cone shaped section you take out as you make it. ;)

  • Reading List | Savvy Eats

    […] but I can’t stop thinking about this Thai tea cake with creamed coconut frosting.  Or this chocolate brownie mousse cake. […]

  • Ashley Bee (Quarter Life Crisis Cuisine)

    Mousse-to-cake ratio here is excellent. I loooove lots of mousse!!

  • Jen @ Jen's Favorite Cookies

    I’m going to be drooling over this cake all week! Will you make one for my birthday too?!

  • RavieNomNoms

    This is just so creatively done! Looks delicious!

  • Magda

    What a beautiful cake! Whenever I come here I’m inspired. Thanks for the detailed instructions!

  • Sylvie @ Gourmande in the Kitchen

    Happy Birthday to your mom, I bet she was one very happy woman with a gorgeous cake like that to celebrate!

  • Lisa

    OMG..this looks sensational. I knew a chocolate heaven existed! ;D

  • Roxana | Roxana's Home Baking

    This cake is simply stunning! Too pretty to eat!
    Happy Belated Birthday to you Mom. A gorgeous cake to celebrate her special day

  • Dina

    I love this cake. Perfect on my holiday table.

  • Karen

    I made this for dinner guests! Easy, beautiful and delicious! I added heavy whipping cream while making the frosting, made it really smooth.

  • Gingerbread Snowflake Cookies: Thoughtful, Lovely and One of a Kind | YouPlusStyle

    […] dozen Snowflake-Shaped Gingerbread Cookies (recipe below) 12 ounces White Royal Icing (recipe […]

  • Tasha Zee

    This is the most amazing thing I ever saw… yum!!!!

  • Everything Golden » Entertaining Style

    […] Ella/Naturally Ella/Andrew Bird/Toast/Chasing Delicious Posted on January 3, 2013 by goldenstyle. This entry was posted in Entertaining, Home, Music, […]

  • sue l

    I imagine that you could just put the mousse in the middle , or cut each cake into two pieces and make this a four layer cake. might be easier to do, but would taste the same. don’t think i am that talented to cut the cone out and do it the way the recipe says. just sayin.

  • Blaise

    Stumbled upon your site, and it’s beautiful :) That’s a very good looking cake.

  • Dixie

    I can not wait to make this beautiful cake. Can you tell me where you got the cake stand?

  • Liz

    Wow! The chocoholics in my house would go nuts for this baby!!! Every component sounds spectacular!

  • Miss Moss : Cake! Cake! Glorious Cake!

    […] chocolate brownie mousse cake by Chasing Delicious: […]

  • Sally

    Georgeous,must try.

  • Crystal

    This is my first time to your blog and I am so impressed, great lay out. Wonderful diagrams easy to follow and beautiful pictures. Thank you for doing what you do. Looking forward to making this cake for my husbands birthday…he says he doesn’t want a cake, but I know his chocolate loving ways will adore this!

  • barbara

    I am trying to make this cake, but there are no eggs listed. Is that correct? in the cake, I mean

  • Celebrating the Two Vikrams in my life with Cake! |

    […] Since 10 hours of meditation isn’t my ball game, once I had let go of things in the past, I started thinking of the cakes I wanted to make (I really am a fat girl deep inside- sometimes it shows outside as well, luckily these days its not!). One of the cakes I thought I would make was this one and I knew it would be made for the anniversary. I had seen the diamond mousse filled cake idea on Russell’s site Chasing Delicious. Check out his post to see how to get the diamond shape in y… […]

  • Happy Weekend! | Snippet & Ink

    […] Chocolate brownie mousse cake. Need I say more. […]

  • 50+ Best Dessert Mousse Recipes

    […] Chocolate Brownie Mousse Cake […]

  • while

    Question – How deep do you need the 6″ pans? 2″? 3″? Thanks!

  • Taylor

    Found the best app for sharing recipes ever! It’s called Heirloom Recipes my sister just got it today and emailed me this recipe with the link and I got the free version to try it and OMG I imported the recipe right into the app no typing or anything! The email had the link to the free one: I’m going to make this cake for our mother’s birthday next week. I hope mine looks as perfect as the pictures of it here. Thanks!!!

  • 15 Chocolate Cake Recipes

    […] Recipe and Photos credit to […]

  • Gourmet Creations


  • Happy friday | flower crowns & candy

    […] On the food front: wanting to try this chocolate mouse cake recipe with my new mixer & loving this delicious little drink recipe! 2. On the fashion front: […]

  • A Single Tier (with recipes) | Just Elope

    […] Chocolate Brownie Mousse Cake […]

  • A Single Tier (with recipes) | Simply Elope

    […] Chocolate Brownie Mousse Cake […]

  • Chocolate Brownie Mousse Cake - Recipe Hearth

    […] Click here for preparation method. […]

  • Rachel @ Bakerita

    This cake is gorgeous, and sounds absolutely delicious!! Pinned :)

  • #mousseprobz

    The cake part turned out awesome–quite like a brownie, bittersweet, dense, and preeetty rad. However, dat mousse. We didn’t get along.
    The chocolate & egg yolk mixture turned out a weird consistency and hardened almost the instant I mixed it. Then, when I put it to the cream,
    It was lumpy and awkward. I got a little sad. So, at the expense of some fluffiness, I resorted to squishing the mixture against the side of the bowl with the back of a wooden spoon. I didn’t get it creamy even then, but it wasn’t deflating at all, which, in my experience, is super uncharacteristic of a mousse.
    While I liked most of the recipe, it was a just a smidge disappointing giving a mousse disclaimer before cutting my mum a piece of her birthday cake. (Haha, just what is it with mothers and chocolate?) I’m not unfamiliar with mousses… moussi… uh, plural mousse, and while I could have easily made some kind of oops somewhere, did you by any chance have a similar issue? Any tips? Or perhaps you might review the recipe you posted, ‘cuz the mousse in the picture looks much different and far tastier. XD
    Otherwise, the cake was great and I’ll definitely reuse that portion of the recipe!

  • Thalia @ butter and brioche

    i am obsessed with this cake! thanks for sharing the recipe and for providing awesome tips.. i definitely will be making this mousse cake!

  • Smithc22

    I really like your writing style, good information, thankyou for posting D. agkebekgkkdbekak

  • Allison T

    This cake looks amazing! My birthday is coming up in a week perhaps I will make this for myself. Thanks for sharing a great recipe!

  • 71 Reasons Candy Hearts Are Stupid | Iran

    […] […]

  • Carmen

    How deep do you need the 6″ pans? 2 or 3 inches?

  • get more instagram followers app android

    Yes, great US Military force. Also, in his post you have given a chance to listen about US Military. I really appreciate your work. Thanks for sharing it.
    get more instagram followers app android

  • girlsdoporn

    I was very pleased to find this site.I wanted to thank you for this great read!! I definitely enjoying every little bit of it and I have you bookmarked to check out new stuff you post.

  • 71 Reasons Candy Hearts Are Stupid -

    […] […]

Post A Comment