From south Austria (a.k.a. north-east Italy)

Blaukrauti

1 medium red onion, thinly sliced
6 cups chiffonade (1/2 inch ribbons) red cabbage
4 sage leaves
1 clove garlic
2 cups red wine vinegar
2 tablespoons salt
2 tablespoons sugar

Place all ingredients in a 6-quart pot and cover. Bring to a boil over high flame and reduce to simmer. Cook covered 40 to 50 minutes, stirring frequently or until very tender. Can be reheated with great success.

Yum. It's in now.