Gather a large mixing bowl. Chop the cabbage and then rinse in a large colander.
Chop the beet and onion and add all the vegetables to the bowl. Mix the vegetables with the teaspoon of salt. If you are not on a salt restricted diet, use another 1/2 teaspoon, or 1 tsp ground celery seed.
Mix the apple cider vinegar with the water and cover the mixture, it may take 1-2 cups.
Store in the fridge and enjoy it daily on salads, sandwiches, or as a side dish! It develops a delicious flavor well and keeps 10-14 days with the added salt.