Preheat oven to 180C and grease and line 2 x 20cm/8" round baking tins
Beat together the Xylitor or sugar, flour, butter, eggs and vanilla extract
Split the mixture into two bowls
In one bowl add the beetroot powder to colour the batter pink
In the other bowl add the matcha powder to flavour and colour the mixture green
Put the coloured batters into the prepared cake tins and bake for approximately 25 minutes or until golden and they bounce back when pressed in the centre or a cocktail stick inserted into the middle comes out clean
Allow cakes to cool for 10 minutes in the tins then cool completely on a wire rack
Use a wire cake slicer to half both cakes horizontally
Make the filling by mixing the fromage fraiche with cream cheese, honey and vanilla extract
Half the filling mixture and in one half add the matcha powder and in the other the beetroot powder
Build the cake in alternate layers and spread the fillings between each layer
Mix the remaining fromage fraiche with cream cheese, honey and vanilla extract and spread over top of cake
Sprinkle over the edible dried rose petals, pistachio nuts and lavender