Start by pulsing the Oreos in a food processor until they turn into fine crumbs. Transfer the crumbs to a medium bowl and mix in the softened cream cheese until everything is well combined. Then, stir in the chopped Snickers and Reese’s Pieces until they’re evenly distributed.
Line a baking sheet with parchment paper. Using a small cookie scoop, shape the mixture into small balls and place them on the prepared baking sheet. Pop them in the freezer for about 30 minutes until they firm up slightly.
In a microwave-safe bowl, melt the white chocolate chips and oil together until smooth, stirring every 30 seconds. Stir in 10 drops of green gel coloring, adding more until you reach your desired monster shade.
Dip each frozen ball into the melted green chocolate until they’re fully coated, then use a fork to lift them out, letting any excess chocolate drip back into the bowl. Arrange them back on the parchment-lined baking sheet. Press a candy eyeball into the top of each coated truffle and sprinkle them with some purple sprinkles for extra fun.
Repeat the dipping process with the remaining frozen balls and melted white chocolate. Once done, freeze them until the chocolate hardens, about 15 minutes. Enjoy your spooky treats!