The following is a very basic list of ingredients you can use to make a cat food.
You can buy ingredients at pet stores, but you need to have them at home in order to make them.
If you are trying to make homemade cat food at home, be aware that some ingredients may not be safe to consume if consumed by a pet.
Water and salt.
Eggs, or whole eggs, with room to spare.
Salt and pepper.
A little bit of oil.
Vegetable broth or stock.
Fruits and vegetables.