Introducing Krispy Kreme’s New Halloween-Themed Doughnuts To celebrate Halloween, Krispy Kreme released three spooky new doughnuts on Monday. Each member of the Monster Batch has a backstory as well, according to the chain. “Slimon” the “Slime Monster” is a lemon-filled doughnut with green icing, while the one-eyed Mummy “Mumford” is an original glazed featuring purple and white frosting. If you like cake batter, say hello to “Hypno-Henry”. Pick these up before the 31st. And if you show up in costume on the holiday itself, Krispy Kreme says you’ll be treated to one free doughnut. What are you dressing up as this Halloween?