Step by step

Add the vinegar, salt and pepper; cover and simmer for 45 minutes

Tips
When you buy a cabbage, make sure that it is compact and has fresh, bright, firm leaves of a good strong colour. Store it in a plastic bag in the least cold part of the fridge for a few days.
Trivia
Cabbages have restorative properties, they are anti-inflammatory, antiseptic and anti-neuralgic. Eating them frequently helps to improve disease resistance. The only contra-indication is for those who suffer from thyroid disorders. In addition, it may be useful for those who suffer from acne: take a leaf, remove the main rib and crush it with a rolling pin until liquid appears on its surface, then apply this to your face.