Melt the marshmallows and butter in a large nonstick pan over low heat.
Mix the cereal, chocolate chips, and chocolate candies together in a large nonstick bowl (or a bowl coated with cooking spray).
Pour the melted marshmallow mixture over the cereal mixture, and mix well.
Pour immediately into a pan lined with parchment paper.
Notes
Keep in mind the size of the pan determines the thickness of your rice krispie treat.Top with drizzled red candy melt and sprinkles for a fun Valentine's Day treat!