Strawberry Fraisier

To celebrate the start of the strawberry season here in Switzerland and RHYTHM 108’s BIRTHDAY we have put together this deliciously decadent fraisier cake. It is made with a light génoise sponge, sweet fresh strawberries and a creamy vanilla mousseline filling.  It’s the perfect cake for a celebration on any day of the week! 

Every Bake comes with an equally tasty playlist, this one has a birthday party theme to it! Check it out at the bottom of the page.

Strawberry Fraisier

Prep Time2 hrs
Cook Time10 mins
Servings: 1 large or 6-8 small

Ingredients

Ingredients for the génoise sponge

  • 80 g rice flour
  • 40 g polenta flour
  • 40 g tapioca starch
  • 40 g ground almonds
  • 120 g raw cane sugar
  • 1 tsp baking powder
  • 200 ml almond milk
  • 80 g coconut oil melted
  • 2 tsp vanilla extract

Ingredients for the mousseline cream filling

  • 600 ml plant milk oat or almond work well in this recipe
  • 2 tsp vanilla extract
  • 100 g icing sugar
  • 30 g tapioca starch
  • 2 tsp agar agar powder
  • 200 g coconut oil room temperature

Ingredients for the filling and decoration

  • 400 g fresh strawberries
  • 125 g marzipan
  • Red food colouring

Ingredients for the sugar syrup

  • 30 ml water
  • 30 g sugar

Method

Method for the génoise sponge

  • Preheat the oven to 180° Celsius and line the bottom of two 20 cm round tins with baking paper.
  • Grease the sides of the tin with a little coconut oil.
  • Weigh out and sift all the dry ingredients into a medium sized bowl and mix them together.
  • Melt the coconut oil and stir into the dry ingredients. Add the plant milk gradually, stirring after each addition so that it is well incorporated. Don’t overmix otherwise the mixture won’t rise as well during the bake.
  • Divide the mixture equally between the two tins and bake on the middle shelf of the oven at 180° Celsius for 10 minutes. The edges of the sponge should start to colour slightly, but it will remain light in colour and soft but firm to the touch.
  • Remove from the oven and place on a cooling rack in the tins to cool down completely.

Method for the mousseline cream filling

  • Place the vanilla extract and plant milk in a saucepan and bring to the boil. Remove from the heat and leave to infuse for 30 minutes.
  • In a separate bowl mix together the icing sugar, tapioca starch and agar agar. Add a few tablespoons of the milk to form a fluid paste and then whisk into the rest of the milk.
  • Put back on the heat and bring to the boil, whisking continuously until thickened.
  • Reduce the heat to a low simmer and cook for 2 – 3 minutes, whisking continuously.
  • Take off the heat and pour it into a medium bowl.
  • Cover with cling film to stop it forming a skin. Leave to one side and let cool to room temperature.
  • Weigh out the coconut oil and whisk for a few minutes until soft and creamy.
  • Once both the coconut oil and cooled milk mixture at roughly the same temperature, start to add them together gradually, whisking vigorously after each addition.
  • The coconut oil must emulsify completely with the thickened milk mixture.
  • This step is essential to achieve a smooth mousseline cream!
  • It may separate as you mix it together but keep whisking vigorously and it will come together.
  • Once homogenised, cover the bowl with cling film and place in the fridge for a few hours or overnight to cool completely and firm up.

Method for the sugar syrup

  • In the meantime, prepare the sugar syrup by placing the water and sugar in a small saucepan.
  • Bring to the boil and make sure the sugar is completely dissolved. Take of the heat and allow to cool before using.
  • Method for the marzipan
  • Take your block of marzipan and add a small drop of red food colouring to it and mix it in well so that it becomes totally uniform in colour.
  • Wrap in cling film and leave to one side.

Notes

To assemble the cake
To build the cake you will need a pastry ring 18 cm in diameter and 5 cm high.
Take one of the sponge layers, which should be about 1 cm high. You may need to trim a few millimetres off the top of the sponge to flatten it out if it puffed up too much in the oven.
Cut around the base layer of the sponge so that it is about 1.5 cm less in diameter than the pastry ring, for example, pastry ring is 18 cm, sponge layer needs to be 16.5 cm.
Place the pastry ring on a flat plate or cake stand and line with acetate (if using).
Remove the base of about 15 strawberries, making sure they are all roughly the same height and then cut them in half lengthways.
Place them upright with the cut side pressed against the pastry ring all the way around.
They need to be tightly packed together so the they hold the cream filling in nicely.
Next, place the base sponge layer inside the ring of strawberries, it should fit flush against the strawberries (depending on the size of the strawberries you have!). Gently press the sponge down to fit against the strawberries and brush over half of the cooled sugar syrup.
Then, start spreading the mousseline cream onto the sponge layer. Using a pastry knife spread the mousseline filling up the sides of the pastry ring, pressing quite hard to ensure the cream fills any gaps between the strawberries and sponge. The cream layer should be about 0.5 cm thick over the sponge and just a very thing layer over the strawberries.
Cut most of the remaining strawberries into small chunks and scatter them over the mousseline cream.
Place them in the middle only, leaving a 2 cm gap between the sides of the pastry ring and the chopped strawberries.
Cover the chopped strawberries with a thin layer of mousseline cream, again pressing the cream up against the side to make sure all gaps are filled, and the strawberries are nicely packed in.
This strawberry and cream layer should be about 1.5 cm thick. There should still be about 1.5 cm left between the layer of cream and the top of the pastry ring.
Cut around the top layer of the sponge so that it is about 1 cm less in diameter than the pastry ring, for example, pastry ring is 18 cm, sponge layer needs to be 17 cm.
Finally place the second layer of sponge on top and brush it with the remaining sugar syrup.
Then spread the remaining mousseline cream on top, making sure to flatten and smooth it out equally over the sponge. It should be about 0.5cm thick and reach the very top of the pastry ring.
Ideally leave the cake in the fridge overnight or at least a few hours to set, allowing the flavours to mellow and the sponge to absorb the syrup.
Before serving the cake, roll out the marzipan to about 3mm thick and neatly cut out an 18 cm circle.
Take the cake out of the fridge and carefully remove the pastry ring (if you haven’t used plastic acetate to line the pastry ring it’s a good idea to heat it slightly. You can do this by using a hairdryer for a few seconds around the circumference of the ring).
For every recipe we have a matching Spotify playlist to bake along to. Here is this week’s baking soundtrack!
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from a small bakery nestled on the foothills of the Swiss Alps, we use our creativity and patisserie skills to reinvent your favourite, most indulgent treats with wholesome and nutritious ingredients, so you never have to miss out on the fun!

This recipe was created with love, by

Daphne McMahon

Having worked as a lead pastry chef and baker, Daphne has a passion for pushing the boundaries - she creates beautiful recipes, bringing natural ingredients into the world of pastry and chocolate making, and making sure every recipe is as delicious as it is wholesome.

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