01 - Line a 9x13 inch baking sheet with parchment paper to prevent sticking.
02 - Place white chocolate in a microwave-safe bowl. Microwave in 30-second intervals, stirring thoroughly between each burst, until completely smooth. Alternatively, melt over a double boiler using simmering water.
03 - Let the melted chocolate cool for 2 minutes. Gently fold in the mini marshmallows until evenly distributed throughout the chocolate.
04 - Pour the chocolate-marshmallow mixture onto the prepared baking sheet. Use a spatula to spread it into an even layer approximately ½ inch thick.
05 - Sprinkle the chopped candy eggs and pastel sprinkles evenly over the surface. Press lightly with your fingertips to ensure they adhere to the chocolate.
06 - Refrigerate for at least 1 hour or until completely firm and set throughout.
07 - Break or cut into irregular pieces and serve immediately. Store leftovers in an airtight container at room temperature for up to one week.