Goody, goodie, goody-goody

n.

Heard in Dublin

A simple snack or light meal for children, typically bread or biscuits soaked in milk or water, sweetened with sugar or honey and eaten from a mug with a spoon.

In use

Come in yer wan, I made you a mug of goody

Posh English

Come inside, young lady, for I have prepared a warm mug of nursery comfort for you.