Wash the meat and pat dry. Heat 1 tablespoon of oil and fry the fillet all around. Then fry over medium heat for about 8 minutes. Season with salt and pepper
Clean, wash and drain the salads and pluck them into bite-sized pieces. Wash, quarter and core apples. Cut off a few slices to garnish. Cut the rest into pieces. Peel, wash and roughly grate celery. Chop the nuts. Wash and pluck the thyme.
Take out the meat. Add 2 tablespoons of oil, vinegar and thyme to the frying fat and heat. Season with salt and pepper
Cut the fillet into slices. Arrange on plates with salads, apple pieces and celery. Drizzle marinade over them and sprinkle with walnuts
Drink: dry red wine