Start by greasing a 9x13-inch baking dish with butter or lining it with parchment paper for easy removal later.
In a large saucepan over medium heat, melt the salted butter. Add the snipped marshmallows and stir continuously until fully melted and smooth.
Remove the saucepan from heat and stir in the finely chopped white chocolate until completely melted.
Gently fold in the Rice Krispies, ensuring they are evenly coated with the mixture.
Fold in the candied peanuts for added crunch and flavor.
Pour the mixture into the prepared baking dish, pressing it evenly and tightly packed.
Allow the treats to cool at room temperature for about an hour before cutting into squares or rectangles.
