Chocolate bar components: cocoa solids, cocoa butter, sugar, and milk. The relative presence or absence of these define the subclasses of chocolate bar made of dark chocolate, milk chocolate, and white chocolate. In addition to these main ingredients a chocolate bar may contain flavorings such as vanilla and emulsifiers such as soy lecithin to alter its consistency. While vanilla is the most common flavouring, many other flavours are available, including mint, orange, and coffee. Chocolate bars containing other ingredients feature a wide variety of layerings or mixtures that include nuts, fruit, caramel, nougat, and fondant. A popular example is a Snickers bar,
Hot chocolate variant "Heiße Schokolade Wiener Art" contains an egg yolk for thickness. In the United States and Canada, the drink is popular in instant form, made with hot water or milk from a packet containing mostly cocoa powder, sugar, and dry milk. This is the thinner of the two main variations. It is very sweet and may be topped with marshmallows, whipped cream, or a piece of solid chocolate. Hot chocolate was first brought to North America as early as the 17th century by the Dutch, but the first time colonists began selling hot chocolate was around 1755. Traditionally, hot chocolate