This recipe calls for making peppermint meringue cookies with egg whites, sugar, salt, cream of tartar, and crushed peppermint candy canes. The egg whites are beaten with the other ingredients until stiff peaks form and then spoonfuls of the mixture are placed on a baking sheet lined with parchment paper. The cookies are baked at a low temperature for 1.5 hours until dry inside but not browned, then cooled in the oven before storing for up to 2 months.