Anyone who is colored in Easter egg or read the ingredients on certain processed foods has probably wondered what exactly food coloring is. Food coloring is a type of edible dye that has many applications in cooking. Food coloring may come in many chemical forms, but none of them should be harmless to the consumer. Food coloring is most often used to simply add color and decoration to a dish. For example food coloring is used to paint shaped marzipan so as to make it look like fresh fruit. Food coloring is also used to color many soft drinks.