Mix the Base: In a large mixing bowl, combine the creamy peanut butter, powdered sugar, and butter. Stir until the mixture is smooth and well combined.
Add Crunch: Gently fold in the Rice Krispies cereal until they're evenly coated with the peanut butter mixture.
Shape the Truffles: Using your hands, roll the mixture into small balls, about the size of a tablespoon. Place the truffles on a baking sheet lined with parchment paper.
Melt the Chocolate: In a microwave-safe bowl, melt the semisweet and butterscotch chips together in 30-second intervals, stirring frequently until smooth.
Dip and Drizzle: Carefully dip each truffle into the melted chocolate mixture, ensuring they're fully covered. Place them back on the parchment paper and drizzle extra melted chocolate on top.