Coat a 13x9 inch pan with cooking spray and line with seran wrap; set aside.

Combine marshmallow creme and butter in a large saucepan and cook on low until thoroughly mixed.

Stir in the cereal and mix until thoroughly combined.

Press the mixture into the prepared pan using a greased spatula.

Set aside to cool.

Set up a double boiler; bring water to a simmer. Place chocolate chips, butter, and milk in a bowl above water and stir until melted.

Spread melted chocolate over cooled cereal mixture.

Decorate with candies and marshmallows.

Use an egg-shaped cookie cutter to cut treats and serve or wrap for Easter baskets.