01 - In a mixing bowl, combine powdered sugar, unsalted butter, peppermint extract, heavy cream, and salt. Beat until a smooth, pliable dough forms. If too sticky, incorporate additional powdered sugar as needed.
02 - Scoop approximately 2 teaspoons of dough and flatten each portion into 1/4-inch thick discs. Arrange on a parchment-lined baking sheet and freeze for 20 to 30 minutes until firm.
03 - Place dark chocolate and coconut oil, if using, in a heatproof bowl. Gently melt over simmering water, stirring frequently until glossy and smooth.
04 - With a fork, immerse each peppermint disc in melted chocolate, allowing excess to drain. Return coated patties to the parchment-lined sheet and refrigerate for 15 minutes or until the chocolate is set.