A s'more is a traditional nighttime campfire treat popular in the United States and Canada, consisting of a fire-roasted marshmallow and a layer of chocolate sandwiched between two pieces of graham cracker.[1] National S'mores Day is celebrated annually on August 10.[2] The Guinness World Record for number of people making s'mores at one time was 423, set April 21, 2016, in Huntington Beach, California.[3]