Chop the chicken breast into chunks.
Cook the chicken for 15 minutes.
Peel and core the apple, then cut it into small pieces.
Remove the chicken from the oven and let it cool, then cut it into small pieces.
Put the chicken and apple pieces in a bowl and mix.
Grate or cut all the cheese and mix most with the chicken and apple, keeping back enough to cover top later. .
Add basil or thyme to the apple cheese if desired and mix well.
In a separate bowl, Crack the eggs, beat with a whisk, and add a pinch of salt.
Add cream to the egg mixture, then mix.
Grease the baking dish with butter.
Transfer part of the chicken, apple, and cheese mixture into the mold, then add part of the cream and egg mixture.
Layer the remaining chicken, apple, and cheese, then add the rest of the cream and egg mixture.
Sprinkle with grated cheese.
Bake at 180°C (350°F) for 30 minutes. Longer if making more
Remove the casserole from the oven and enjoy.
