yummy yucky

oskar has a book called "yummy yucky" which helps define what is edible and what is not by labelling one "yummy" and the other "yucky" eg "blueberries are yummy, blue crayons are yucky" - so simple a concept even a 17month old can grasp it.

top photo, oskar feeds the yucky hot chilli sauce to the playmobil cow.
bottom photo, oskar learns that pavlova is yummy.