Dunkin' Dunkin' is now selling its spiciest donut yet.<br />The new donut consists of a classic yeast ring donut topped with a strawberry-flavored icing that also contains cayenne and ghost pepper spices.<br />Ghost pepper is one of the world's hottest chillies. <br />The sweet-spicy donut is available from October 14 until December.<br />It is part of the chain's Halloween lineup.<br />Dunkin' is also producing a special episode of "Hot Ones" with YouTuber Sean Evans to celebrate the launch.