Melt butter in a large pan on medium heat. Add marshmallows and stir until fully melted. Add food coloring until preferred hue is reached. Stir in rice cereal and mix until fully incorporated.
Remove from heat and allow to cool for about three minutes. While cooling, coat the insides of your plastic eggs with non-stick spray.
While mixture is still warm and malleable, stuff it tightly into the eggs. Chill for about 30 minutes to set.
Enjoy!
Notes
Calories are automatically generated. For best results calculate based on your exact ingredients.