It is recommended to soak in water overnight before cooking to help with digestion and shorten the cook time. To do this rinse beans, pour into a bowl with twice as much water, so at least 3" above top of beans and sit on countertop overnight or for at least 6 hours. Then proceed with rest of steps.
Rinse beans and pour into slow cooker with water or broth, onion, ham, ham hock if you desire. Add a pinch of salt and garlic. Mix together.
Close lid and cook on high for 6-8 hours or until they are tender to your liking.
Serve once tender with diced jalapenos and/or feta cheese on top.