Cut the chicken breast into small pieces. Wash and dice the tomatoes. Cut the mozzarella into small pieces.
Drain the butter in a pan and lightly fry the chicken breast in it. Season with salt, pepper and basil. Add tomatoes and mozzarella, season as needed and simmer for about 8-9 minutes. Pour some of the whipped cream into a small bowl and thicken it with a little flour, making sure that the flour has completely dissolved and that there are no lumps. Add the whipped cream to the pan with the chicken breast. Mix well and pour in the mixed and thickened whipped cream to thicken. Mix well again and bring to the boil again. Season one last time to taste and serve hot.