Baking In Stilettos/ Desserts/ Tried and True Recipes

Tunnel of Mousse Cake From That Skinny Chick Can Bake

Who doesn’t love a chocolate mousse cake? But even better is a Tunnel of Mousse Cake with mousse utilized as both frosting and filling.

[When I asked if anyone was able to guest post for a gal while she heals from the world’s most stupidest mandoline injury, thankfully my buddy Liz tossed her stiletto in the ring.  If you haven’t read That Skinny Chick Can Bake, you are going to want to put that on your daily read list.  Her recipes are amazing, she’s beyond talented in the kitchen, has a heart of gold and can rock a Louboutin like no tomorrow.  Thank you so much Liz for bringing your ultimate Chocolate Mousse Cake to Cooking In Stilettos today!]

I’m honored to be guest posting today here on Cooking in Stilettos. Aly has always been an inspiration, especially since I’m not very techy and she’s kind enough to help me with behind the scenes stuff and current blogging tips and trends. And the fact that she’s a shoe diva makes her even more endearing. Due to her unfortunate kitchen accident a week or so ago, cooking and keyboarding have become rather difficult. I was happy to share one of my most recent creations with you all and give her digits a break.

Tunnel of Mousse Cake | LIght crumb chocolate cake filled and frosted with chocolate mousse
I live with a bunch of chocoholics, so every major holiday requires a chocolate dessert. And as a food blogger, I can never make the same recipe twice. Except for chocolate chip cookies—but I can make those in my sleep! My friend, Cindee, shared this family recipe with me after I posted one of my mousse cake recipes last month. When debating what to make for our Easter dessert, besides the annual fudge lamb, of course, this came to mind. And what a cake it was. The whole darned family licked their plates clean. The mousse reminded me of soft chocolate ice cream, which isn’t surprising considered it’s made of heavy cream, cocoa and sugar. And the cake had a delicate crumb without the chocolate intensity that my daughter finds too rich. So everyone was pleased. Score one for the baker.

Tunnel of Mousse Cake | Light crumb chocolate cake filled and frosted with chocolate mousse

The cake itself was similar to an angel food cake, but the whole egg was used instead of just the whites. Once baked, the top was cut off and much of the interior removed to make a tunnel for the mousse. And since the same mousse was used for the filling and the icing, this recipe wasn’t nearly as labor intensive as other cakes. And everyone loves cutting into a cake and finding a surprise in the middle. I hope you’ll give it a try! Thanks again, Aly, for inviting me to your marvelous blog today.


Yields 10-12

Tunnel of Mousse Cake

Who doesn’t love a chocolate mousse cake? But even better is a Tunnel of Mousse Cake with mousse utilized as both frosting and filling!

3 hrPrep Time

1 hrCook Time

4 hrTotal Time

Save RecipeSave Recipe
Recipe Image


    For Cake:
  • 1/2 cup sifted cocoa powder
  • 3/4 cup boiling water
  • 1 3/4 cups sifted cake flour
  • 1 3/4 cups sugar
  • 1 1/2 teaspoons baking soda
  • 1/2 teaspoon salt
  • 1/2 cup vegetable oil
  • 7 egg yolks, reserve egg whites
  • 2 teaspoons vanilla
  • 1 cup of egg whites (7 or 8), at room temperature
  • 1/2 teaspoons cream of tartar
  • For Mousse:
  • 4 cups heavy cream
  • 1 1/2 cups powdered sugar
  • 3/4 cup sifted cocoa
  • 2 teaspoons vanilla
  • 1/4 teaspoon salt


  1. Preheat oven to 325º.
  2. Put cocoa powder into small bowl and stir in the boiling water till smooth. Cool for 30 minutes. Sift together flour, sugar, soda and salt. Make a well in the center and add oil, egg yolks, vanilla and cocoa mixture. Beat till smooth with a hand mixer, scraping sides of bowl as needed. Set aside.
  3. Put egg whites into the bowl of a stand mixer fit with the whisk attachment. Sprinkle with cream of tartar. Beat until stiff peaks form. Pour chocolate batter over egg whites and gently fold together till blended. Pour into an ungreased tube pan.
  4. Bake for 50-60 minutes or till the top of the cake springs back when pressed. Cool on rack for at least 1 1/2 hours. Use a straight, thin metal spatula to go around the perimeter of the cooked cake to help loosen, then remove carefully.
  5. Make the mousse by combining all ingredients. Refrigerated for one hour. Then beat till quite firm. Refrigerate for another hour before assembling the cake.
  6. When whipped mousse is fully chilled, prepare the cake. With a long serrated knife, carefully slice off the top 1 inch of the cake. As a guide, insert toothpicks one inch below the top spaced around the perimeter. Reserve the top for later.
  7. Next cut vertically around the perimeter of the cake, one inch from the outside edge and one inch from the inside edge. You will be making a well in the middle of the cake. Be careful not to cut through to the bottom of the cake. Carefully cut the inside into sections and pull out pieces of the cake leaving one inch of cake at at the bottom for the base. Reserve cake pieces.
  8. Fill the cavity with the chilled mousse. Crumble some of the reserved cake into a bowl and mix in 1/2 cup of mousse. Fill the hole in the center of the cake with the mousse/cake mixture.
  9. Replace the top of the cake and frost with the remaining mousse. Garnish as desired. Refrigerate leftovers.



8092 cal


478 g


770 g


276 g
Click Here For Full Nutrition, Exchanges, and My Plate Info

You Might Also Like