Scramble the Egg. Cook the egg in a pan without any oil, butter, or seasoning. Let it cool completely.
Mix with Kibble. Combine the cooled scrambled egg with your dog’s kibble.
Fill the Carton. Spoon the egg and kibble mixture into a few (or all) of the egg carton cups.
Close the lid of the egg carton. For a bigger challenge, you can even tape it lightly shut (just be sure your dog can still open it safely).
Let the Fun Begin! Place the carton on the floor and let your pup sniff, paw, and tear into it to find the hidden treats!