Place the cereal onto a lined tray and into a cold oven set to 150°C for exactly 15 minutes.
Remove and tip into the cold milk, stirring well. Allow to infuse for at least 20 minutes.
Strain, but don’t push any solids through the sieve. Discard solids.
Place 200g of the Cereal Milk into the Thermomix bowl and warm 5 min/80°C/speed 1.
Add the rest of the ingredients and stir to combine. Allow to age overnight in the fridge if possible.
Churn using manufacturer instructions.
Thermomix Method; Freeze in a container you can easily remove the contents from, I used a plastic container with a lid as you need to cover the mixture while it freezes.
When ready to serve, chop into pieces. Put about half of them into the Thermomix bowl and blend 10 sec/speed 8. Add the rest and keep blending for 1 min/speed 8, using the official spatula to help mix.
Insert the Butterfly and whip 20 sec/Butterfly/speed 4 if you are going for a soft serve result.
Serve immediately in cones or cups with some cereal or sprinkles on top.