• Line a 22cm round cake tin with baking paper (bottom and sides) and pre-heat your oven to 160 degrees celsius (fan-forced).
• Place the butter, caster sugar, milk and white chocolate squares into your Thermomix bowl and cook for 3 minutes, 60 degrees, Speed 2 or until the butter and chocolate have melted and the mixture is smooth.
• Add the flour, baking powder, vanilla extract and eggs to your Thermomix bowl and mix for 10 seconds, Speed 4.
• Scrape down the sides of the bowl and mix for a further 5 seconds, Speed 4.
• Transfer to your prepared cake tin and place into the oven to bake for 50 minutes or until cooked through when tested with a skewer. Carefully remove the cake from the oven and allow it to cool in the pan.

White Chocolate Ganache

• Add the cream to your Thermomix bowl and cook for 3 minutes, 60 degrees, speed 1.
• Set the timer on your Thermomix to six minutes, 60 degrees, speed 2 and gradually add the white chocolate pieces. Continue to mix until chocolate has melted.
• Transfer the ganache to a bowl or place the Thermomix bowl into the fridge to chill for 30 minutes. This will allow the ganache to begin to firm and give a better consistency to top the cake with.