01 - Drain maraschino cherries thoroughly and pat dry with paper towels. Chill cherries in the refrigerator while preparing the fondant.
02 - In a mixing bowl, combine powdered sugar, softened butter, corn syrup, milk, vanilla extract, and salt. Mix with a spatula or electric mixer until a smooth, pliable dough forms. If too sticky, add a little more powdered sugar.
03 - Scoop about 1 teaspoon of fondant and flatten it in your palm. Place a cherry in the center and wrap the fondant around, completely enclosing the cherry and sealing at the stem. Repeat for all cherries. Place wrapped cherries on a parchment-lined tray and refrigerate for at least 30 minutes, or until firm.
04 - Place chocolate and coconut oil (if using) in a heatproof bowl over a pot of simmering water (double boiler). Stir gently until completely melted and smooth. Remove from heat.
05 - Holding each cherry by the stem, dip it into melted chocolate, swirling to coat completely. Let excess chocolate drip off, then place on a parchment-lined tray. Repeat for all cherries.
06 - Refrigerate the dipped cherries until chocolate is fully set, about 30 minutes. For best results, let candies rest in a covered container at room temperature for 1–2 weeks to allow the fondant to liquefy slightly for a classic cordial center.