Add all the ingredients, except for the Creme Eggs, in to your Ninja Creami tub, and mix well to combine.
Secure the lid, and place on a completely flat surface in the freezer for 24 hours.
Remove from the freezer, remove the lid, and wait for 10 minutes to soften slightly.
Spin on the ‘Ice Cream’ setting. If necessary, re-spin with a splash of milk (if it's icy or crumbly).
Use a cutlery knife to carefully form a well in the ice cream – it should be around an inch wide, and go right the way down to the bottom of your Creami tub.
Roughly chop your Creme Eggs, and add into the hole.
Return the tub to the Ninja Creami, and use the ‘Mix-In’ setting.
Enjoy!