In a large microwave-safe bowl, combine 2 packages of miniature marshmallows and 2 tablespoons of melted butter.
Microwave on high for 1-2 minutes until the marshmallows are soft and puffy.
Stir the mixture until smooth and well combined.
Melt the White Chocolate:
In a separate microwave-safe bowl, melt 2 packages of white chocolate chips in 30-second intervals, stirring between each interval until smooth and creamy.
Combine the Ingredients:
Pour the melted white chocolate over the marshmallow mixture and stir until evenly combined. The mixture should be thick and sticky.