three-color pudding

This pudding is actually very simple. When I was a child, my mother bought me some marshmallows. As soon as I ate only a few, I greedily asked my mother to buy pudding. When my mother saw that I still had a lot of marshmallows, she suggested that I "contribute" the marshmallows to make the pudding (in fact, all of them went into my stomach after I made it). My mother took 6 pink marshmallows (my favorite pink color at that time), poured a glass of milk, boiled it, and put it in the refrigerator. I was so anxious that I went there every minute to see if the freezing was ready, so I didn't get better after seven or eight hours of freezing. My mother told me that if I wasn't too anxious, I would have only frozen for three or four hours. Now, on a whim, I have begun to try making different puddings myself.