It's creamy chocolate flavored ice cream, which is in a plastic container.
它是奶油巧克力味冰淇淋,装在塑料容器中。
查理和巧克力工厂 Charlie and the Chocolate Factory
Many times a day, he would see other children taking bars of creamy chocolate out of their pockets and munching them greedily, and that, of course, was pure torture.
This thing, for him, was far, far worse than seeing slabs of chocolate in the shop windows or watching other children munching bars of creamy chocolate right in front of him.