Prepare a 9x13 baking pan by lining it with parchment paper
In a large saucepan/pot over medium heat, heat the marshmallows and butter whilst continuously mixing until both are completely melted and the mixture is smooth. Careful not to let it burn. Remove from the heat.
With a wooden spoon, fold in the Rice Kripsies until the cereal and mini eggs until completely coated with the marshmallow mixture.
Pour the mixture into the lined baking pan and spread it evenly in the pan. Use a greased spatula to press the mixture gently down into the pan.
Leave to set for 1 hour at room temperature. Once set, remove from the pan and cut into squares.
Best if served fresh but stays fresh in an airtight container at room temperature for up to 3 days.
Notes
Use fresh marshmallows for best results.· Do not press into the pan firmly as this will make them very hard to eat· Can be made without the mini eggs or substitute them for m&m's or other candy, nuts etc.· Make a gluten-free version by using gluten-free cereal and marshmallows