01 - In a mixing bowl, combine powdered sugar, unsalted butter, peppermint extract, heavy cream, and a pinch of salt. Mix with an electric mixer or sturdy spatula until a smooth, pliable dough forms. Add additional powdered sugar if the mixture is too sticky.
02 - Portion dough into small balls, approximately 2 teaspoons each, and flatten to 1/4-inch thick discs. Arrange on a baking sheet lined with parchment paper. Freeze for 20 to 30 minutes until firm.
03 - In a heatproof bowl set over simmering water, melt chopped dark chocolate with coconut oil (if using), stirring continuously until smooth.
04 - Using a fork, dip each chilled peppermint disc into the melted chocolate, allowing excess to drip off. Place coated discs back onto the parchment-lined baking sheet.
05 - Refrigerate patties for 15 minutes or until the chocolate coating is completely set.