Preparation
You first have to clean the cabbage. Remove the hard outer leaves, divide the cabbage into two parts and remove the core. Cut it into strips and put them in a colander. Wash and dry carefully. Then put the cabbage strips in a bowl, salt, pepper, add vinegar and allow to marinate for 15 minutes.
Fry chopped onion in a large pan with oil, add cabbage strips and cook over medium/low heat for about 1 hour and 15 minutes. 30 minutes before the end of cooking time, peel apples and cut them into slices.
Put the apple slices in a bowl, sprinkle with sugar and mix. Then add to the red cabbage in the pan and cook for another 15 minutes until your red cabbage with apples is ready to be served.