Chocolate Hazelnut Mousse Cake (Rich, Creamy & Bakery-Style)

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Breakfast

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 🍫✨

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