In a large skillet, melt bacon fat over medium high heat.
Add onions and saute for about 5 minutes.
Turn the heat down to medium and add the red cabbage to the pan. Toss with the onions and cook down for another 5 minutes.
Pour in the apple cider vinegar and bone broth. Toss the cabbage and onions.
Add the spices and raisins, and stir to incorporate with the cabbage and onions.
Turn the heat down to medium low and cover, stirring occasionally. Cook for 5-10 minutes or until the cabbage is tender.