In 2009, we adopted a little boy from an orphanage. He was three and a half years old.
At the orphanage, they didn't ever give the kids anything sweet, and he had no idea what candy tasted like.
One day, I gave him the basket in a supermarket an said "Take what you want." In the end, all we took was a packet of tea and a small chocolate. He said that's all he needed.
Since then, he's always asking me for a little extra pocket money. He goes and buys himself a modest amount of treats and brings it all home. I keep encouraging him to eat them himself, but it's useless. He says he wants to share everything he has.