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,
Condensed milk (evaporated) milk is reached. The sugar extends the shelf life of sweetened condensed milk. Sucrose increases the liquid's osmotic pressure, which prevents microorganism growth. The sweetened evaporated milk is cooled and lactose crystallization is induced. Condensed milk is used in recipes for the Brazilian candy "brigadeiro" (where condensed milk is the main ingredient), key lime pie, caramel candies, and other desserts. Condensed milk and sweetened condensed milk is also sometimes used in combination with clotted cream to make fudge in certain countries such as the United Kingdom. In parts of Asia and Europe, sweetened condensed milk is the preferred milk