I have no idea if children are all obsession with tasty food or snacks, my girl is like this. She likes eating all kinds of food, like fruits and candies. And she remember where she had ever had the food, when she got a chance, she would advise that let's go to the place again. As someone being with her for nearly five years, (pregnant and growth), I nearly know what she will say next.
I can understand her maybe because I was like that when I was a child. My dad always took different fruits and snacks back and we were eating a lot of things, from Spring Festival to the next Spring Festival. Really nice moments when thinking backwards.
What about your children, the same like this one? lol