This Chocolate Hazelnut Mousse Cake is rich, soft, creamy, and full of deep chocolate flavor. The moist chocolate cake base combined with smooth hazelnut mousse creates a luxurious dessert that tastes like it came straight from a bakery.
Perfect for birthdays, celebrations, dinner parties, or whenever you want an impressive homemade dessert 🍫✨
🧾 Ingredients
🍰 For the Chocolate Cake Base
- 2 eggs (room temperature)
- 100 g sugar
- 80 ml oil
- 80 ml milk
- 120 g all-purpose flour
- 20 g cocoa powder
- 1 tsp baking powder
👉 Additional Ingredients (Recommended)
- 1 tsp vanilla extract
- A pinch of salt
🍫 For the Hazelnut Mousse
- 1 cup heavy whipping cream (cold)
- ½ cup chocolate hazelnut spread (Nutella-style)
- 100 g melted dark chocolate
- 1 tsp vanilla extract
🍫 Optional Decoration
- Chocolate shavings
- Chopped hazelnuts
- Cocoa powder
- Chocolate drizzle
👩🍳 Step-by-Step Instructions
🔹 Step 1: Prepare the Oven & Cake Pan
Preheat oven to:
🔥 175°C (350°F)
Grease and line an:
- 8-inch round cake pan
🔹 Step 2: Beat Eggs & Sugar
In a large bowl:
- Add eggs and sugar
Beat for:
⏰ 3–4 minutes
until:
✔️ Light
✔️ Pale
✔️ Slightly fluffy
👉 This helps create a soft cake texture.
🔹 Step 3: Add Wet Ingredients
Now add:
- Oil
- Milk
- Vanilla extract
Mix until smooth.
🔹 Step 4: Prepare Dry Ingredients
In another bowl, combine:
- Flour
- Cocoa powder
- Baking powder
- Salt
Mix well.
🔹 Step 5: Combine the Batter
Gradually add the dry ingredients into the wet ingredients.
Mix gently until:
✔️ Smooth
✔️ Lump-free
⚠️ Do NOT overmix.
🔹 Step 6: Bake the Cake
Pour the batter into the prepared cake pan.
Bake at:
🔥 175°C (350°F)
for about:
⏰ 25–30 minutes
The cake should become:
✔️ Soft
✔️ Puffy
✔️ Slightly springy on top
🔹 Step 7: Cool Completely
Allow the cake to cool completely before adding mousse.
👉 Warm cake can melt the mousse.
🍫 Step 8: Prepare the Hazelnut Mousse
In a chilled bowl:
- Beat cold whipping cream until soft peaks form.
Now add:
- Hazelnut spread
- Melted chocolate
- Vanilla extract
Fold gently until smooth and creamy.
👉 Do NOT overbeat.
🔹 Step 9: Assemble the Cake
Place the cooled cake on a serving plate or keep inside a springform pan.
Spread the hazelnut mousse evenly over the cake.
Smooth the top using a spatula.
🔹 Step 10: Chill the Cake
Refrigerate for at least:
⏰ 4–6 hours
👉 Overnight chilling gives the best mousse texture.
🔹 Step 11: Decorate
Before serving, decorate with:
- Chocolate shavings
- Hazelnuts
- Cocoa powder
- Chocolate drizzle
🔥 Important Tips for the Perfect Mousse Cake
✔️ Use cold whipping cream
✔️ Let the cake cool fully before adding mousse
✔️ Use good quality cocoa powder
✔️ Chill long enough for proper mousse texture
✔️ Don’t overmix the mousse
❓ Frequently Asked Questions (FAQ)
1. Why is my mousse runny?
Usually because:
- Cream wasn’t cold enough
- Not chilled long enough
2. Can I use Nutella?
Yes! Nutella works perfectly.
3. Can I make it ahead of time?
Absolutely! It tastes even better the next day.
4. How should I store it?
Keep refrigerated:
⏰ Up to 5 days
5. Can I freeze it?
Yes! Freeze slices individually for up to 1 month.
🍰 Final Thoughts
This Chocolate Hazelnut Mousse Cake is rich, creamy, soft, and absolutely irresistible. The combination of chocolate and hazelnut creates a luxurious dessert that’s perfect for special occasions or whenever you want to treat yourself 🍫✨
