Rich Chocolate Mousse Cake

Featured in Sweet treats that make you happy.

This eye-catching dessert combines moist chocolate cake soaked in coffee, an airy mousse with a mix of chocolates, and a shiny ganache drip. Each bite is a mix of light cake, creamy mousse, and smooth ganache that melts in your mouth. Layers are carefully stacked to create unbeatable textures and rich flavors perfect for chocolate lovers.
Maria from tastyhush
Updated on Tue, 29 Apr 2025 12:32:12 GMT
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Rich Chocolate Mousse Cake | tastyhush.com

I'll show you how to make this decadent three-layer chocolate treat that'll knock your socks off. We're talking a soft, rich chocolate base, creamy mousse center, and shiny chocolate coating on top—it's basically heaven for anyone who can't get enough chocolate.

I've tried tons of mousse cake recipes over the years, and this one hits the sweet spot between dense and fluffy. The first time I made this for friends, they thought I'd secretly bought it from a bakery!

Key Ingredients and Smart Buying Advice

  • Dark Chocolate: Go for quality 70% cocoa for the best taste. Look for shiny bars with clean snap.
  • Milk Chocolate: Don't skimp here—good brands melt better and taste nicer.
  • Dutch Process Cocoa: This gives you a darker color and bolder flavor than regular cocoa powder.
  • Fresh Eggs: Split them when they're cold but let them warm up before using.
  • Heavy Cream: Make sure it's got at least 36% fat or it won't whip up right.

Step-by-Step Baking Guide

Step 1: Getting Your Cake Base Just Right
Check your oven's real temp before you start cooking. Mix all dry stuff really well to break up cocoa clumps. Pour in hot coffee last to wake up the cocoa flavors. Don't cook it too long—it's done when the tester comes out with a few wet crumbs stuck to it.
Step 2: Nailing the Mousse
Melt your chocolate gradually so it doesn't get grainy. Warm up egg yolks carefully or they'll turn into scrambled eggs. Make sure the gelatin completely melts in the warm cream. Stir with a light touch to keep all the air bubbles intact.
Step 3: Making Smooth Ganache
Cut chocolate into same-size pieces for even melting. Warm cream just until it bubbles—don't let it boil. Wait the full 3 minutes before you stir it. Pour at the perfect temp for those pretty drips down the sides.
Chocolate Mousse Cake Pin it
Chocolate Mousse Cake | tastyhush.com

I spent countless hours watching my grandma whip up chocolate treats, and she always said you can't rush good desserts. This one takes some time, but trust me, each step adds amazing flavor that makes it worth the wait.

The real trick to making this cake amazing is watching the temperature. I've learned that giving each layer enough time to set creates that cool mix of textures that keeps every bite interesting.

Chocolate Mousse Cake Pin it
Chocolate Mousse Cake | tastyhush.com

This has become my go-to dessert whenever I want to impress someone. The way these three chocolate layers come together makes something truly unforgettable that chocolate fans can't stop talking about.

Frequently Asked Questions

→ What’s the purpose of acetate or a collar?
They make the mousse layer smooth and tidy on the edges.
→ Can I prepare this dessert early?
Sure, make it up to 2 days ahead and store in the fridge.
→ What’s the point of adding coffee to the cake?
It boosts the chocolate flavor and keeps the cake moist without tasting like coffee.
→ Is gelatin optional in this recipe?
No, you’ll need it to give the mousse its structure for slicing.
→ How should I store leftovers?
Refrigerate for up to 5 days, but it’s best to eat within 3 days.

Chocolate Mousse Cake

A layered dessert with chocolate cake, fluffy mousse, and a glossy ganache finish.

Prep Time
250 Minutes
Cook Time
120 Minutes
Total Time
370 Minutes
By: Maria

Category: Desserts

Difficulty: Difficult

Cuisine: French

Yield: 10 Servings

Dietary: Vegetarian

Ingredients

→ Chocolate Cake

01 1/2 cup (100g) white granulated sugar
02 3/4 cup (95g) plain all-purpose flour
03 1 teaspoon baking soda
04 2 large eggs, beaten
05 1/4 teaspoon kosher salt
06 2 tablespoons cornstarch
07 1/4 cup (25g) dark unsweetened cocoa powder
08 1/2 cup (105g) packed dark brown sugar
09 1/2 cup (112g) neutral vegetable oil or olive oil
10 1/2 teaspoon baking powder
11 1/2 cup (120g) creamy sour cream
12 1 teaspoon pure vanilla essence
13 1/2 cup (120g) freshly brewed hot coffee

→ Cake Soak

14 1 tablespoon unsweetened cocoa powder
15 1/2 cup (120g) steaming coffee

→ Chocolate Mousse

16 3 large eggs, whites and yolks separated
17 7 oz milk chocolate, broken into pieces
18 1 3/4 cups heavy whipping cream, split
19 7 oz 70% dark chocolate, cut into small chunks
20 1/2 teaspoon tartar powder
21 1 1/2 teaspoons plain unflavored gelatin
22 3 tablespoons of water
23 1/4 cup (50g) granulated white sugar

→ Ganache

24 3/4 cup (180g) heavy cream
25 6 oz 70% dark chocolate, chopped

Instructions

Step 01

Stir the wet ingredients together. In another bowl, toss the dry ones together. Once both are ready, mix them and bake at 350°F in a springform pan for about 25-30 minutes.

Step 02

Cut and level the cooled cake. Line a pan with acetate strips or parchment paper, then add the coffee and cocoa soak over the cake surface.

Step 03

Heat the chocolates until melted, stir in egg yolks, then mix with the gelatin-heavy cream blend. Gently fold in the whipped cream and stiff egg whites.

Step 04

Spread the mousse generously over the cake. Leave it in the fridge for at least 4 hours or even overnight.

Step 05

Prepare the ganache, pour it on top of the firm mousse layer, and let it chill for half an hour before serving.

Notes

  1. Gluten-free flour works as a substitute.
  2. Use parchment paper if you don’t have acetate.
  3. For perfect results, refrigerate overnight.

Tools You'll Need

  • Springform pan, 9-inch size
  • Cake collar (acetate strip)
  • A handheld or stand mixer
  • A double boiler setup

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains milk products
  • Includes eggs
  • Contains wheat