That candy you get for your loved one on Valentine's Day is usually called a box of chocolates.
But technically, they are probably bonbons.
Bonbons have a molded chocolate shell with a soft non-chocolate center: fruit, nougat, creams or caramel, for instance.
However, some boxes of chocolates might also contain truffles. Truffles have a creamy, buttery chocolate center, and are usually rolled in nuts, cocoa powder or even sugar.
Truffles got their name because they are typically round and they resemble the edible fungus of the same name, which often fetches high prices and features in gourmet cuisine.