Drain the kraut and rinse under cold water. Slice the apple and onion; mince the garlic. Mix the kraut, apple, onion, garlic, caraway seeds and brown sugar (if using) together. Put in a large baking dish and top with ribs. Bake until the apple and onion are tender. If using a crockpot, mix all ingredients together and cook on low for about 8 hours. If doing on top of the stove, mix all together and simmer covered over medium-low heat until the apples and onions are tender.