01 - Place the rice cereal squares in a large mixing bowl.
02 - In a microwave-safe bowl, combine white chocolate chips, peanut butter, and butter. Microwave in 30-second intervals, stirring between each, until smooth and fully melted (about 1–2 minutes).
03 - Stir in vanilla extract.
04 - Pour the chocolate mixture over the cereal and gently fold with a spatula until evenly coated.
05 - Transfer the coated cereal to a large zip-top bag. Add powdered sugar, seal the bag, and shake until the cereal is thoroughly coated.
06 - Spread the mixture out on a parchment-lined baking sheet to cool for 10 minutes.
07 - Once cooled, stir in green candy-coated chocolates, mini marshmallows, chopped gold coins, and green sprinkles. Gently toss to combine.
08 - Store in an airtight container until ready to serve.