01 - Line a baking sheet with parchment paper and set aside.
02 - Melt chocolate in a heatproof bowl set over a pot of simmering water, stirring constantly until smooth and glossy. Alternatively, microwave in 30-second intervals, stirring between each interval.
03 - Holding each chip individually, dip halfway or fully into melted chocolate. Gently shake to remove excess coating and transfer to prepared baking sheet.
04 - Immediately sprinkle sea salt flakes, crushed nuts, or sprinkles over wet chocolate before it begins to set.
05 - Allow chocolate to harden at room temperature for approximately 1 hour, or refrigerate for 20 minutes. Store in an airtight container for up to 3 days.