I just found the secret to the juiciest chicken breast! Simple and delicious

Ingredients:
chicken breast: 2 pc
eggs: 4 pc
sour cream: 200 g (7.1 oz)
cheese: 150 g (5.3 oz)
salt: 5 g (0.2 oz)
black pepper: 3 g (0.1 oz)
onion: 1 pc
tomatoes: 1 pc
parmesan: 50 g (1.8 oz)
butter: 100 g (3.5 oz)
black pepper: 3 g (0.1 oz)