01 - Line a baking sheet with parchment paper.
02 - Place chopped chocolate in a heatproof bowl set over a saucepan of barely simmering water and stir until smooth; alternatively, melt in 20-second microwave intervals, stirring in between.
03 - Hold each strawberry by the stem and dip into melted chocolate, swirling to coat evenly; allow excess chocolate to drip off.
04 - Sprinkle dipped strawberry with chopped pistachios immediately or dip into pistachios for a thicker coating.
05 - Arrange coated strawberries on the prepared baking sheet.
06 - Let the chocolate set at room temperature for 30 minutes or refrigerate for 10–15 minutes for quicker setting.
07 - Serve immediately or store in an airtight container in the refrigerator for up to 24 hours.