1. Line baking sheet with waxed paper; set aside. In heatproof bowl set over saucepan of hot (not boiling) water, melt chopped chocolate with truffles, stirring occasionally, until smooth; keep warm.
2. In small bowl, combine chopped cookies with pistachios; set aside.
3. Holding pear by stem, dip bottom two-thirds of pear into melted chocolate, leaving top third uncoated. Allow excess chocolate to drip back in bowl.
4. Sprinkle bottom third of chocolate-coated area with pistachio mixture until evenly coated; place on prepared baking sheet. Refrigerate for about 1 hour or until chocolate is hardened.
• Tip: If desired, insert skewer into top of pear for dipping.