Dreamy Chocolate Cake

Featured in Sweet bites of pure joy.

This elegant treat layers up rich chocolate flavors with a moist cocoa base enhanced by coffee. That base gets soaked lightly for extra depth before being topped with fluffy mousse, made with whipped cream, meringue, and two types of chocolate. It’s finished with a smooth ganache that drapes luxuriously down the sides. The textures are a perfect match – soft cake, light mousse, and rich ganache – making every bite a true delight.
alicia in the kitchen
Updated on Tue, 29 Apr 2025 12:34:12 GMT
Dreamy Chocolate Cake Pin it
Dreamy Chocolate Cake | tasteofsavor.com

I'll turn this decadent dessert into a step-by-step walkthrough for making the ultimate chocolate fan's fantasy. This three-layer chocolate wonder blends a rich, soft cake foundation, velvety mousse center, and shiny chocolate coating to make a dessert you won't forget.

After trying tons of mousse cakes, I think this one perfectly balances being rich without feeling too heavy. The first time I made this for friends, everyone thought I'd sneaked out to a fancy bakery.

Key Ingredients and Smart Shopping Advice

  • Dark Chocolate: Go for good 70% cocoa stuff for big flavor. Look for shiny bars with clean snap.
  • Milk Chocolate: Spend a bit more here for better melting and taste.
  • Dutch Process Cocoa: It's darker and tastier than regular cocoa powder.
  • Fresh Eggs: Split them when they're cold but let them warm up before using.
  • Heavy Cream: Don't skimp - you need the fat (36%+) to whip it right.

Step-by-Step Baking Guide

Step 1: Getting the Cake Foundation Right
Double-check your oven's real temp first - it matters a lot. Mix dry stuff super well to break up cocoa clumps. Pour in hot coffee last to wake up the cocoa flavors. Pull it out while a few sticky crumbs still hang on your toothpick.
Step 2: Nailing the Mousse Layer
Melt your chocolate really slowly and carefully. Add hot stuff to eggs bit by bit so they don't cook. Make sure the gelatin totally disappears into warm cream. Don't stir too hard or you'll lose all the fluffiness.
Step 3: Finishing with Perfect Topping
Cut chocolate into same-size pieces for even melting. Just warm the cream until tiny bubbles form - don't let it boil. Wait the full 3 minutes before you stir it. Pour when it's the right coolness for pretty drips down the sides.
Chocolate Mousse Cake Pin it
Chocolate Mousse Cake | tasteofsavor.com

I spent years watching my grandma work magic with chocolate treats, and she always said you can't rush good dessert. This one takes a while, but every minute you spend builds up flavors that make it stand out.

What really makes this cake work is watching your temperatures. I've learned that giving each section proper time to set creates those amazing different textures in every bite.

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

This cake has become my go-to for birthdays and celebrations. Putting these three chocolate methods together creates something so good that chocolate fans talk about it for days after.

Frequently Asked Questions

→ What’s the purpose of a cake collar?
It helps keep the mousse layer neat with smooth edges.
→ Can I prep this in advance?
Totally, you can make it up to 2 days before. Just keep it cold.
→ Why use coffee syrup for soaking?
It makes the cake extra moist and enhances the chocolate flavor without it tasting like coffee.
→ Can the gelatin be left out?
No, it’s important to help the mousse hold its structure.
→ What’s the shelf life?
Keep it refrigerated for 5 days. It’s best enjoyed within the first 3 days.

Mousse Chocolate Cake

Three dreamy chocolate layers: tender cake, airy mousse filling, and a shiny ganache top.

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

Category: Desserts

Difficulty: Difficult

Cuisine: French

Yield: 10 Servings

Dietary: Vegetarian

Ingredients

→ Chocolate Cake

01 1/2 cup (108g) packed dark brown sugar
02 1/2 teaspoon baking soda
03 1 teaspoon vanilla extract
04 2 tablespoons cornstarch
05 1/4 teaspoon kosher salt
06 3/4 cup (100g) all-purpose flour
07 1/4 cup (28g) dutch cocoa powder
08 1/2 cup (120g) sour cream
09 1/2 cup (118g) hot coffee
10 1/2 teaspoon baking powder
11 1/2 cup (102g) granulated sugar
12 1/2 cup (114g) olive or vegetable oil
13 2 large eggs

→ Cake Soak

14 1 tablespoon dutch cocoa powder
15 1/2 cup (120g) hot coffee

→ Chocolate Mousse

16 3 large separated eggs
17 7 oz milk chocolate, broken into pieces
18 1/4 cup (48g) granulated sugar
19 1 1/2 teaspoons unflavored gelatin powder
20 7 oz 70% dark chocolate, broken up
21 1/2 teaspoon tartar powder
22 3 tablespoons water
23 1 3/4 cups whipping cream, split

→ Ganache

24 6 oz dark chocolate, broken into small pieces
25 3/4 cup (180g) heavy whipping cream

Instructions

Step 01

Stir together wet and dry components separately. Mix them, bake in a 350°F oven using a springform pan for about 25-30 minutes.

Step 02

Trim the cooled cake to level it. Use parchment or acetate to prepare your pan, then soak the cake with the coffee-cocoa mixture.

Step 03

Melt both chocolates and stir them into the egg yolks. Mix this with the prepared gelatin cream, then gently fold in whipped cream and meringue.

Step 04

Spread the mousse on the cake layer, refrigerate for at least 4 hours or leave overnight for the best texture.

Step 05

Whip up ganache and pour it over the set mousse layer. Cool for 30 minutes before you slice it up to serve.

Notes

  1. Gluten-free flour can be swapped instead.
  2. Acetate can be replaced with parchment sheets.
  3. Chill overnight to get the best flavor and texture.

Tools You'll Need

  • Springform pan (9-inch)
  • Collar made from acetate
  • Mixer (hand or stand)
  • Double boiler or similar setup

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Eggs
  • Wheat
  • Dairy