01 - Line a baking sheet with parchment paper to prevent sticking.
02 - Place white candy melts or white chocolate chips into a microwave-safe bowl. Heat in 30-second intervals, stirring between each, until completely melted. Integrate coconut oil if a thinner consistency is desired.
03 - Using a fork or dipping tool, immerse each donut hole in the melted coating, rolling to cover evenly. Transfer each coated donut hole to the prepared baking sheet.
04 - While coating remains wet, press one candy-coated chocolate onto the center of each donut hole to resemble the iris.
05 - Gently position a mini chocolate chip atop the candy-coated chocolate to simulate the pupil.
06 - Allow donut holes to firm up at room temperature or refrigerate for 10 minutes until the coating sets.
07 - With a small piping bag or tube, pipe thin squiggly lines radiating outward from the iris using red gel icing to mimic blood vessels.
08 - Enhance decoration with sprinkles or colored sugars for additional monster character, if desired.
09 - Arrange finished donut holes on a platter and serve for a festive, spooky display.