Cream 8 ounces cream cheese in a large mixing bowl with a hand mixer until smooth.
Crumble the 20 Lofthouse cookies into the same bowl and beat with the cream cheese until well combined.
Use a medium cookie scoop to portion out the truffle mixture into balls and roll them between the palms of your hands to make a smooth ball. Place each ball onto the prepared baking tray and repeat until the mixture is gone.
Refrigerate the cookie balls for 1 to 2 hours. This will help the balls set and keep their shape when dipping.
Melt 10 ounces Ghirardelli white chocolate melting wafers in a bowl at 30-second intervals, stirring after each one, until completely smooth.
Use a fork to dip one cookie ball at a time into the melts then remove and gently tap the fork on the edge to remove the excess coating. Place the ball back onto the parchment paper and immediately top with Nonpareil sprinkles.
If you plan to drizzle them with Red and green candy melts, you can coat the balls and allow the white chocolate coating to set.
Microwave the candy melts in a piping bag on a low or defrost setting. Massage the bag every 30 seconds to ensure it is heating evenly.
Snip off a small piece of the tips and then drizzle over the coated sugar cookie balls.
Place in the refrigerator for at least 10 minutes for the coating to harden. Keep refrigerated until ready to eat.