Beef Shank Cross Cut in the Slowcooker

INGREDIENTS

beef shank cross cuts

red onion

5 cloves

garlic

2 tsp

cooking fat of choice

1 lb

small red potatoes

1 cup

red wine (you can use water or broth instead)

3 cups

water

1 1/2 tsp

salt divided + 1 pinch for the sauce

2 tsp

arrowroot powder for the optional sauce

1 tsp

butter for the optional sauce