Three layer vanilla sponge cake filled with raspberry compote and mascarpone frosting, covered in white chocolate frosting.
Ingredients
For the Cake
- 5 eggs room temperature, large
- 1 cup / 200g sugar
- 2 tsp vanilla
- 1 cup / 120g flour
For the Syrup (for soaking the sponge layers)
- ¼ cup / 60ml raspberry liqueur
- ¼ cup / 60ml simple syrup
For the Mascarpone Cream
- 1 cup / 250g mascarpone
- 1 cup / 250ml whipping cream
- ¼ cup / 15g icing sugar
- 2 tsp gelatine
- 2 tbsp water
- 2 tsp vanilla
For the Raspberry Compote
- 1 ½ cups / 190g raspberries fresh or frozen (I used frozen)
- ½ cup / 100g sugar
- 2 tbsp water
- 1 cup / 125g fresh raspberries
For the White Chocolate Buttercream
- 5 oz / 150g white chocolate chopped (not chocolate chips)
- ¼ cup / 60ml whipping/double cream
- 4 tbsp unsalted butter softened
For decoration
- 1 sprig rosemary
- ¼ cup / 30g raspberries
- Icing sugar for dusting
Instructions
For the Cake
- Preheat the oven to 350F/180C.
- Grease 3 8″ cake pans and line them with parchment paper. (Russian sponge is very delicate so it’s important to use parchment paper for easy removal.)
- Crack 5 eggs at room temperature to a bowl of a stand mixer and add sugar and vanilla, beat at high speed for 5 minutes until the mixture is pale and triples in volume.
- Fold in flour through a sifter in 5-6 additions blending it in gently after each addition.
- Your goal is to keep the volume of the egg mixture so be very careful in this step of the process.
- Divide your cake batter among 3 pans and bake for 25-30 minutes until cake tester or tooth pick comes out clean and the cakes have risen to the top of the pan. (I baked 2 layers and then 1 later).
- Cool for 10 minutes and then run a knife around the edges of your pans to release the cakes and flip them over on a wire rack to cool completely. (After your cakes have cooled you can individually wrap them in plastic wrap for later use. You can bake you sponge layers a day ahead.)
For Raspberry Compote
- Combine 1 ½ cups of raspberries and sugar with water in a small saucepan and cook on low heat until thick and mixture coats the back of a spoon. It will take about 15 minutes.
- Remove from heat and process in a food processor or a blender until smooth.
- Push through a fine sieve to get rid of the seeds.
- Combine the compote with fresh raspberries and set aside.
For the Mascarpone Cream
- Mix gelatine with water in a small bowl. Let it sit for 5 minutes until it goes spongy.
- Heat the gelatine mixture in a microwave for 10 seconds until runny and smooth.
- Combine mascarpone, whipping cream, sugar and vanilla in a bowl of a stand mixer.
- Start whipping on medium speed until combined.
- With the motor of a stand mixer still running drizzle your gelatine mixture over the cream and whip for 2-3 minutes until well combined.
For the Syrup
- Combine raspberry liqueur with simple syrup (water and sugar mixed in equal parts).
- Drizzle over the cake layers. (Russian sponge really benefits from being drizzled with a flavoured syrup since there is no fat mixed into the batter and it can taste on the dry side without the syrup.)
How to assemble the cake
- Load your mascarpone cream in a large piping bag with a plain round tip.
- Pipe a border around the first drizzled with syrup layer, it will keep your raspberry compote from leaking out of the sides.
- Fill with half of your raspberry compote. ( It won’t cover the entire layer, the berries will be spread sparsely.)
- Then pipe in the mascarpone cream in the empty spaces and smooth it out with a spatula. You shouldn’t have any gaps.
- Top with another layer and repeat the process.
- Finish with the third layer.
For the White Chocolate Buttercream
- Heat ¼ cream in a saucepan until it just simmers but not boiling.
- Take off the heat and pour over chopped white chocolate in a medium sized bowl.
- Let it sit for a couple of minutes and then stir until chocolate is melted into the cream.
- Cool for 10 minutes and then start whipping in a stand mixer or with a hand mixer. (Hand mixer works better here because of the small amount).
- Mix for 10 minutes until light and fluffy, then start adding softened butter by a tablespoon, mix well until entirely incorporated into the frosting after each addition. (You will have enough frosting for a thin layer around the cake. If you like more frosting on your cake simply double the recipe but it will make a very sweet cake.)
- Spread ½ of the buttercream over the cake and let it chill in the fridge for 20 minutes.
- Coat your chilled cake with the other half of the frosting and decorate with rosemary and raspberries.
Source: Vikalinka
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