Step 1

Preheat your oven to 180 degrees celsius (fan-forced) and line a 20cm round baking tin with baking paper. Set aside until needed.

Step 2

Place the butter and caster sugar into your Thermomix bowl and mix for 30 seconds, Speed Scrape down the sides of the bowl and mix for a further 20 seconds, Speed 3.

Step 3

Add the vanilla extract, milk, eggs and self raising flour and mix for 10 seconds, Speed 4.

Step 4

Scrape down the sides of the bowl and mix for a further 5 seconds, Speed 4 or until well combined.

Step 5

Transfer the mixture in three equal parts (approx 180g each) and add the cocoa to one and a couple of drops of pink food colouring (or cochineal if using) to the other. Mix to create the coloured mixture.

Step 6

Add spoonfuls of the three different coloured mixtures to your prepared loaf tin and once all the mixture is in the tin, use a butter knife to gently swirl the mixture to create the ‘marble’ effect.

Step 7

Place the cake tin into the oven and cook for 30 – 35 minutes or until your marble cake is cooked through when tested with a skewer.

Step 8

Cool in tin for 5 minutes before transferring to a wire rack to cool completely.

Step 9

Store in an airtight container or freeze indivually wrapped slices in the freeer for up to 3 months.