Boil directly in water, without salt or oil. If the cat is too young, leave it and chop it up for it to eat. If you are an adult, you can also tear it into strips.
Chop the chicken breast, put an egg yolk on it and steam it in a bowl.
Slice the chicken breast, about the size of chopsticks, then fry it in a pot for 20 seconds, a total of 40 seconds, and then cut it into soybean-sized particles for the cat to eat.
If it's not too much trouble, you can use a pressure cooker to make soup … put some water without adding anything, and cook it in 1-2 hours. It can also replenish water, and cats obviously prefer to drink broth than whitewater cats.
Cut the chicken breast into small pieces and fry it directly without oil. In this way, the meat particles contain less water, which can improve the palatability of cats.