Ingredients
For the Base
- 200 g chocolate biscuits or chocolate sponge cake
- 60 g melted butter
- 2 tablespoons cocoa powder (optional for deeper flavor)
For the Mousse Filling
- 300 g cream cheese, softened
- 200 g dark or milk chocolate
- 2 cups heavy whipping cream (about 480 ml)
- ½ cup powdered sugar
- 1 teaspoon vanilla extract
- Pinch of salt
Optional Topping
- Chocolate shavings
- Cocoa powder dusting
Preparing the Base
Crushing the Biscuits
If you are making a biscuit base, place the chocolate biscuits in a food processor and pulse until they become fine crumbs. If you don’t have a processor, place them in a sealed plastic bag and crush them using a rolling pin until they reach a sandy texture.
Mixing with Butter
In a bowl, combine the biscuit crumbs and melted butter. Mix until the crumbs are fully coated. The mixture should feel like damp sand that holds together when pressed.
Pressing Into the Pan
Line the bottom of a springform pan with parchment paper. Pour the crumb mixture inside and press it evenly using a spoon or the bottom of a cup. You want a smooth, firm base that supports the mousse.
Optional Step
Chill the base in the refrigerator for at least 15 minutes while preparing the filling. This helps it firm up and prevents crumbs from mixing into the mousse.
If using a thin sponge cake instead, simply trim it to fit the pan and place it at the bottom.
Making the Chocolate Mousse Filling
Melting the Chocolate
Place the chocolate pieces in a heatproof bowl. Melt using one of the following methods:
- Double Boiler: Place the bowl over simmering water and stir until melted.
- Microwave: Heat in 20-second intervals, stirring each time.
Allow the melted chocolate to cool slightly so it doesn’t melt the cream or cheese when mixed.
Whipping the Cream
In a large chilled bowl, pour the cold heavy cream. Beat with an electric mixer until soft peaks form. Add powdered sugar and vanilla extract, then continue beating until stiff peaks form.
Do not overbeat or it may turn grainy.
Softening the Cream Cheese
In another mixing bowl, beat the cream cheese until smooth and creamy. Add a pinch of salt to enhance the flavor.
Combining Chocolate and Cream Cheese
Pour the melted chocolate into the cream cheese mixture. Mix slowly until fully combined. You should get a smooth, chocolatey cream mixture.
Folding In the Whipped Cream
This step is the key to achieving the fluffy mousse texture you see in the photos.
Take one-third of the whipped cream and gently fold it into the chocolate mixture. This lightens it.
Then add the remaining whipped cream and fold slowly, using wide, gentle strokes.
Avoid stirring vigorously—folding preserves the air inside the cream and creates the airy mousse texture.
The mixture should become light, creamy, and smooth.
Assembling the Cheesecake
Spreading the Mousse
Pour the chocolate mousse filling over the chilled base. Use a spatula to smooth the top. Your photo shows a beautifully even surface—it achieves that look by spreading from the center outward using long, gentle motions.
Removing Air Bubbles
Tap the pan lightly on the counter to release any trapped air.
Chilling the Cake
Place the cheesecake in the refrigerator for at least 6 hours, but overnight gives the best results.
The chilling process is essential—this is what allows the mousse to set firmly enough to slice cleanly.
Adding Chocolate Shavings
Creating Shavings
Use a vegetable peeler to shave curls from a bar of chocolate. Milk chocolate gives softer curls, while dark chocolate gives firm flakes.
Decorating the Cake
Once the mousse is fully set, sprinkle the chocolate shavings across the entire top.
This adds texture and makes the cake look elegant, just like the one in your images.
Unmolding and Serving
Removing from the Springform Pan
Run a warm knife around the inside edge of the pan before unclipping it.
Lift the ring gently to reveal the perfectly smooth mousse sides.
Slicing the Cake
Use a warm, sharp knife for clean slices. Dip the knife in hot water and wipe it after each cut.
Serving Ideas
- Serve chilled for the best texture.
- Add fresh berries or whipped cream for contrast.
- Enjoy with coffee for an indulgent dessert experience.
Tips for Perfect Results
Use Good Chocolate
The flavor depends heavily on the chocolate quality. Choose a brand you enjoy eating.
Don’t Skip Cooling the Chocolate
If it’s too hot, it will ruin the mousse consistency.
Keep the Cream Cold
Cold cream whips faster and holds air better.
Fold Gently
Never stir vigorously. Folding is what keeps the mousse light.
Chill Long Enough
The mousse needs time to stabilize. Rushing the chilling will result in a softer, unstable cake.
Line the Pan
It makes unmolding easier and prevents sticking.
Variations You Can Try
White Chocolate Version
Replace dark chocolate with white chocolate and add fresh fruit on top.
Mocha Cheesecake
Add 1 tablespoon instant coffee dissolved in warm water to the cream cheese mixture.
Nutella Cheesecake
Replace half the melted chocolate with Nutella for a hazelnut flavor.
Oreo Base
Use crushed Oreos instead of chocolate biscuits.
Dark Chocolate Lovers
Add extra cocoa powder to the mousse for a deeper flavor.
Storage Instructions
Refrigeration
Keeps well for up to 4 days.
Freezing
Slice the cake, wrap each piece in plastic wrap, and store for up to 2 months.
Thaw in the refrigerator before serving.