Ingredients
Vanilla Biscuit






Strawberry Raspberry Mousse









Strawberry Raspberry Confit









Cream Cheese Frosting



Cake Coating



Instructions
Step 1
Begin by beating the eggs with sugar and a pinch of salt until the mixture becomes light and increases in volume.
Sift the flour and baking powder together three times to ensure it is well aerated.
Carefully fold the flour mixture into the egg mixture using a whisk.
Combine the boiling water, vegetable oil, and vanilla paste in a bowl, then add it to the batter, mixing gently until combined.
Bake the biscuit in a 14 cm (5.5 inches) cake mold at 170°C (340°F) for approximately 40 minutes.
Check doneness by inserting a toothpick; it should come out clean.
Once baked, immediately invert the biscuit onto a wire rack to cool.
Step 2
Dissolve the gelatin according to package instructions.
Combine strawberries and raspberries with sugar and blend until smooth.
Transfer the berry mixture to a saucepan and bring to a boil.
Remove from heat and stir in the dissolved gelatin.
In a separate bowl, whip the heavy cream to soft peaks, then gently fold in the sour cream.
Mix the cooled berry puree into the whipped cream until fully combined.
Line two 12 cm (4.7 inches) molds with plastic wrap, pour the mousse into the molds, and freeze for 3 to 4 hours.
Step 3
Again, dissolve the gelatin according to package instructions.
Blend strawberries, raspberries, sugar, and lemon juice until smooth.
Transfer the mixture to a saucepan and heat until boiling.
Gradually stir in a slurry of cornstarch mixed with cold water, stirring continuously until thickened.
Immediately stir in the dissolved gelatin and mix well.
Pour the confit over the set mousse and return to the freezer until fully set.
Step 4
In a mixing bowl, whip the heavy cream with sugar until stiff peaks form.
Gradually add the chilled cream cheese and whip again until the mixture is smooth and homogenous.
Step 5
Mix the chilled cream cheese with room temperature butter and sugar until creamy and well combined.
Spread the cream cheese coating over the cooled biscuit.
Servings
Once your cake is ready, it's time to give it the royal treatment! Serve this gorgeous Strawberry-Raspberry Mousse Cake at room temperature for the best flavor. 💖✨
Garnish Ideas:
For an extra pop of color, top with fresh strawberries and raspberries, or even edible flowers for that Instagram-worthy shot! 🌸🍓
Pair slices of the cake with a dollop of whipped cream or a scoop of vanilla ice cream to elevate the experience. The creamy textures and fruity flavors make each bite a delightful surprise! 🍦🥳
This cake also shines at outdoor gatherings. Imagine enjoying a slice during a picnic with family and friends while soaking in the sun—truly a treat that makes memories! ☀️🍉
Equipment
Make sure to grease the pans well or line them with parchment paper for easy removal. For best results, use non-stick pans to prevent sticking.



A good quality blender is key for achieving a smooth berry mixture. Ensure you blend the fruits well to eliminate any lumps.



Use separate bowls for mixing wet and dry ingredients to keep things organized and ensure even mixing.
A sturdy whisk will help with aerating the egg mixture and incorporating the cream for a light and fluffy cake.



Variations
Gluten-Free Option: Substitute regular flour with a gluten-free flour blend to make this cake gluten-free without sacrificing taste or texture. Just ensure that all other ingredients, including baking powder, are also gluten-free! 🌾🚫
Vegan Version: Replace eggs with flaxseed meal or applesauce, and use a plant-based butter for the frosting. Coconut cream can be used instead of heavy cream for the mousse. These swaps make it a delicious vegan dessert that everyone can enjoy! 🌱🥥
Faq
- What should I do if my mousse doesn’t set?
If your mousse isn’t setting properly, it could be due to the gelatin not being activated correctly. Make sure it’s fully dissolved and added to the mixture while still warm.
- How can I tell when the sponge cake is done baking?
Insert a toothpick in the center; if it comes out clean or with a few crumbs, it's ready. Also, the cake should spring back when lightly pressed.
- Can I use frozen berries for the mousse?
Absolutely! Frozen berries work well, but thaw them first and drain any excess liquid to maintain the right consistency.
- How do I prevent my mousse from being grainy?
To ensure a smooth texture, thoroughly blend the berry mixture and incorporate the gelatin carefully. Avoid over-mixing the whipped cream.
- What’s the best way to store any leftovers?
Store leftovers in an airtight container in the fridge for up to 3 days. Just be mindful of any toppings that might get soggy!
- Can I make the components in advance?
Yes, you can prepare the sponge and mousse a day before assembling the cake. Just keep everything well-covered in the fridge.