Rich Chocolate Cake

Category: Sweet Treats Everyone Will Love

A treat with three dreamy layers! Start with a moist cocoa and coffee cake base that’s soaked to boost flavor. Add a fluffy chocolate mousse whipped up with dark and milk chocolate, cream, and light meringue for extra texture. Finish it all off with a dripping shell of smooth ganache. Together, the tender cake, creamy mousse, and glossy ganache make every bite a chocolate lover’s dream.
Emily Watson
By Emily Watson Emily Watson
Last updated on Sat, 19 Apr 2025 00:30:43 GMT
Rich Chocolate Cake Pin
Rich Chocolate Cake | thefamilycooks.com

I'm turning this indulgent dessert into a step-by-step walkthrough for making the most amazing chocolate treat ever. This three-layered chocolate wonder mixes a soft, moist chocolate base with velvety mousse in the middle and a shiny topping to create a dessert you won't soon forget.

After whipping up tons of mousse cakes over the years, I think this one hits the sweet spot between too heavy and too light. The first time my friends tried it, they swore I must have picked it up from a fancy bakery downtown.

Key Ingredients and Shopping Advice

  • Dark Chocolate: Go for good 70% cocoa stuff for better taste. Look for shiny surface as a quality sign.
  • Milk Chocolate: Spend a bit more on name brands for easier melting and nicer flavor.
  • Dutch Process Cocoa: This makes everything darker and more chocolatey than regular cocoa powder.
  • Fresh Eggs: Split them when they're cold but let them warm up before using.
  • Heavy Cream: Don't skimp here, you need at least 36% fat or it won't whip right.

Step-by-Step Baking Guide

Step 1: Getting the Cake Layer Right
Check your oven with a thermometer first, it matters a lot. Mix all your dry stuff super well to get rid of cocoa clumps. The hot coffee goes in last to wake up the cocoa flavor. Take it out while it's still a tiny bit sticky in the middle.
Step 2: Nailing the Mousse Layer
Melt your chocolate really slowly or it'll get grainy. Warm up the egg yolks carefully so they don't turn into scrambled eggs. Make sure the gelatin completely disappears into the warm cream. When mixing, be gentle so you don't lose all the air.
Step 3: Making the Shiny Top Layer
Cut the chocolate into same-size pieces for even melting. Just barely heat the cream until you see tiny bubbles. Let everything sit for 3 minutes without touching it. Pour when it's the right warmth for those pretty drips.
Chocolate Mousse Cake Pin
Chocolate Mousse Cake | thefamilycooks.com

I spent years watching my grandma make chocolate treats when I was little, and she always said you can't rush good desserts. This one takes some time, but each step adds something special that makes the end result amazing.

The real trick to making this cake awesome is watching your temperatures. I've learned that giving each layer enough time to set properly means you'll get those distinct textures that make every bite interesting.

Chocolate Mousse Cake Pin
Chocolate Mousse Cake | thefamilycooks.com

This cake has turned into my go-to dessert for birthdays and holidays. Something magical happens when you combine these three different chocolate layers that makes chocolate fans absolutely crazy for it.

Frequently Asked Questions About the Recipe

→ What does acetate or cake collar do?
It keeps the mousse edges neat while building layers.
→ Can I prepare it early?
Definitely! Make it up to 2 days prior and store in the fridge.
→ Why add coffee to the cake?
Coffee amps up the chocolate taste while keeping it moist.
→ Is skipping gelatin okay?
Nope, gelatin helps the mousse stay firm for slicing.
→ How long will it stay fresh?
Refrigerate for up to 5 days, but it’s best when eaten within 3.

Chocolate Mousse Cake

Layered dessert with moist chocolate cake, airy mousse, and shiny ganache.

Prep Time
250 mins
Cook Time
120 mins
Total Time
370 mins
By Emily Watson: Emily Watson

Recipe Category: Desserts

Skill Level: Advanced

Cuisine Type: French

Makes: 10 Serves

Dietary Preferences: Vegetarian

What You’ll Need

→ Chocolate Cake

01 1/2 cup (105g) packed dark brown sugar
02 1/4 teaspoon kosher salt
03 3/4 cup (95g) plain flour
04 2 tablespoons cornstarch
05 1/2 cup (100g) regular white sugar
06 1/2 cup (112g) olive oil or veggie oil
07 1 teaspoon baking soda
08 1/4 cup (25g) cocoa powder made with dutch process
09 1/2 cup (120g) sour cream
10 1/2 cup (120g) freshly brewed hot coffee
11 2 big eggs
12 1 teaspoon vanilla extract
13 1/2 teaspoon baking powder

→ Cake Soak

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

→ Chocolate Mousse

16 3 tablespoons water
17 7 oz of milk chocolate, broken into bits
18 1 3/4 cups cream for whipping, split into portions
19 1 1/2 teaspoons unflavored gelatin powder
20 1/4 cup (50g) regular sugar
21 7 oz of dark chocolate (70%), chopped
22 3 eggs, yolks and whites separated
23 1/2 teaspoon tartar powder

→ Ganache

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

Step-by-Step Guide

Step 01

Mix the dry and wet parts on their own, then combine. Pop it in a springform pan and bake at 350°F for 25–30 minutes.

Step 02

Once the cake is cool, level it off. Line your cake pan with parchment or acetate. Drizzle the coffee and cocoa soak over the cake.

Step 03

Melt your chocolates and whisk them with the egg yolks. Add the gelatin-cream mix, then gently fold in the whipped cream and meringue.

Step 04

Spread the mousse evenly atop the cake and let it chill for several hours, or leave it to set overnight.

Step 05

Whip up the ganache and pour it over the mousse once it's set. Chill for a half-hour before digging in.

Additional Notes

  1. Gluten-free flour works well here.
  2. You can use parchment instead of acetate.
  3. Letting it sit overnight will give the best results.

Essential Tools

  • 9-inch pan with a springform base
  • Collar made of acetate
  • Electric or stand mixer
  • Double-boiler setup

Allergen Information

Check each ingredient for potential allergens and consult a healthcare professional if needed.
  • Contains dairy
  • Contains eggs
  • Contains wheat