Crock Pot Beef Roast and Cabbage

2 pound grass fed beef chuck roast 1 Tbsp coconut oil 1 cup water 1/8 cup coconut aminos* 1/4 cup coconut vinegar* 5 nickel-size slices ginger (peeling is not necessary) 2 cloves garlic, smashed 4 star anise 1 head red cabbage, core removed and cut into about 16 large...