Chocolate Passionfruit Mousse Cake

Indulge in this luxury, decadent Chocolate Passionfruit Mousse Cake. The moist, rich chocolate layer pairs perfectly with the silky, tangy passionfruit mousse. Finish it with a glossy melted chocolate topping and serve as dessert.

This chocolate passionfruit mousse cake is a decadent tropical dream. The silky, creamy passionfruit mousse pairs beautifully with the rich, moist chocolate cake, creating a perfect balance of sweetness and depth. Every bite delivers soft chocolate sponge, airy passionfruit mousse, and a glossy melted chocolate topping, making every mouthful pure bliss. The passionfruit pulp adds a mouth‑watering tang that keeps you coming back for more, and it's finished with a simple design and a rich chocolate top layer.

You may also enjoy these: Mango Tiramisu, and Chocolate Orange Cheesecake.

Why This Recipe Works

• This indulgent chocolate passionfruit mousse cake is a dreamy cross between a rich chocolate cake and a tropical passionfruit mousse.
• It features a soft, luscious chocolate cake base topped with a light, tangy passionfruit mousse and finished with melted chocolate.
• The recipe scales beautifully, so you can easily make it for a crowd or keep it small and intimate.
• Decorate it simply or get creative and make your own design.

Chocolate Passionfruit Mousse Cake Ingredients

See the recipe card for full information on ingredients and quantities.

• All-purpose flour: Sift before use to remove lumps and dirt. This will ensures the batter is smooth.
• Sugar: Combine caster sugar and brown sugar to add depth of flavor.
• Unsweetened cocoa powder: Choose a high-quality brand and always sift for a lump-free, velvety texture.
• Baking powder and baking soda: Act as leavening agents. Double-check that they have not expired to ensure the cake rises.
• Eggs: Bring to room temperature before use to ensure even mixing and better structure.
• Buttermilk: Should be at room temperature before mixing.
• Coffee: Use good-quality coffee to boost the cake's chocolate flavor.
• Oil: Keeps the cake moist and tender. Opt for flavorless oil like sunflower or vegetable.

Passionfruit mousse layer

• Passionfruit juice: Strain the juice to remove the pulp for a smooth mousse texture.
• Heavy cream/double cream: The cream must be cold to ensure medium-to-stiff peaks form.
• Powdered gelatin: Use powdered gelatin instead of gelatin leaves for this recipe.

Tips and Substitutions

• Frosting/topping: Use dark, milk, or semi-sweet chocolate for the melted chocolate topping, depending on how intense you want the flavor.
• Passionfruit: Use strained passionfruit pulp or juice to avoid seeds if you prefer a smooth mousse.
• Gelatin: Make sure the gelatin is fully bloomed in cold water and properly dissolved to ensure a stable mousse layer. You also need to warm the mixture for 5-10 seconds to fully dissolve the gelatin.
• Weighing scale: Use a weighing scale to measure the ingredients accurately for the best results.

How to make Chocolate Passionfruit Mousse Cake

Step 1: Preheat oven to 190°C / 375°F (Gas Mark 5). Line and lightly grease one circular 7" tin. Set aside for later. Add all-purpose flour, baking powder, baking soda, salt, and unsweetened cocoa powder, brown sugar and granulated sugar. to a bowl.

Step 2: Whisk until evenly combined.

Step 3: In a separate bowl, add eggs, oil, buttermilk, and vanilla.

Step 4: Whisk for 1-2 minutes or until evenly combined.

Step 5: Add the flour mixture to the wet ingredients and gently fold.

Step 6: Then, slowly pour in the hot coffee while mixing the batter.

Step 7: Mix until just combined.

Step 8: Pour the batter into the lined baking tin and bake for 30-40 minutes or until a skewer inserted in the center comes out clean.

Step 9: Once the cake is ready, gently remove it from the tin and let it cool completely upside down on a cooling rack.

Step 10: In a small bowl, add the powdered gelatin to the cold water and let it bloom for about 5-10 minutes. Once bloomed, microwave the gelatin for 5-10 seconds, until fully dissolved.

Step 11: In a large bowl, combine the sweetened condensed milk and strained passionfruit pulp/juice. Mix until smooth.

Step 12: Add 2-3 tablespoons of the passionfruit mixture to the dissolved gelatin and stir.

Step 13: Pour the gelatin mixture into the passionfruit and condensed milk mixture and whisk until combined.

Step 14: In a separate bowl, whip the double cream to soft peaks. Fold the whipped cream into the passionfruit mixture.

Step 15: It should be well combined and airy.

Step 16: Place the cooled cake in a cake ring and acetate. Pour the passionfruit mousse on top. Refrigerate the cake for at least 6 hours, but overnight is best.

Step 17: Remove the acetate and cake ring once the cake has set.

Step 18: Pour cooled, melted chocolate over the top, spreading gently to create a glossy, even layer.

Step 19: Optional: Add passionfruit slices and juice on top. Slice and serve this luxurious chocolate passionfruit mousse cake as a delicious dessert.

Recipe FAQs

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