‘Tis the season for all things cookies: decorating parties, plates of goodies piled in the break room and gorgeous Instagram videos of every type of cookie on the planet, all perfectly iced. Or, are they frosted? There’s a difference, people! Basically, frosting is thick and usually used as a coating for baked goods, while icing is on the thinner side and used as a glaze. If you’re going for a bold cookie that can bear all the toppings, frosting is for you. If you love a sweet n’ shiny gloss that makes your cookies look halfway professional, go with icing.