For 2:

¼ cup cereal
¼ cup warm milk
1 frozen banana
½ cup blueberries and raspberries
dark chocolate shavings

Pour the milk over the cereal, cover with a lid and leave overnight.
In the morning, blend the frozen banana pieces, the cereal and half the amount of berries.
Pour into 2 glasses and top with the chocolate shavings and the remaining berries.