Yummy Fluffy Cake

To prepare the SodaStream Sparkling Water: Fill a Sodastream 1 Liter bottle with cold water and carbonate

Preheat oven to 180°C. Butter and flour the base of two 20cm springform cake pans

Using an electric blender, cream the butter and sugar together until smooth

Add eggs one at a time and blend until the mixture is well combined, scraping down the sides of the bowl after each egg is added

Add lemon zest, vanilla, flour, and salt

Add sparkling water to the mixture and using a handheld whisk, mix until combined

Divide mixture evenly between two pans

Bake pans in the center of the oven for 25-30 minutes, or until a skewer inserted into the middle of each cake comes out clean

Remove from the oven and let cool for 10 minutes. Run a knife around edges of the pan and remove cakes to cool on a wire rack

Using a long-bladed serrated knife cut the top off one of the cakes to make it flat. Place it as the base layer of the cake

Spread an even layer of whipped cream over the top, then layer on the other sponge cake

Finish with some more whipped cream, a scattering of raspberries and a dusting of icing sugar