Remove outer leaves of cabbage, (save for later, if you do not have glass weights) and quarter your head of cabbage. Remove the core.
Slice each quarter into thin strips.
Place the strips of cabbage into a large mixing bowl and add the salt.
Using your hands or stamper, either massage the cabbage aggressively or stamp down, using the stamper. This will start to release the brine or liquid from the cabbage. The brine is very important to have plenty of.
Once the cabbage has released plenty of brine or liquid, place into your quart sized jar. You can use your funnel for this for less mess.
Using your stamper or a spoon press the cabbage down beneath the brine, leaving about an inch of air on top.
Now place your glass weight in the jar to help hold the cabbage beneath the brine. You can also use clean pebbles inside a baggie or a cabbage leaf instead. It is very important to keep the cabbage below the brine for proper fermentation.
Now place the lid on loosely.
Place on a tray of some kind (in case of leaking) and place in a dark cool spot in your house.
Allow to sit out at least 10 days, but you can leave it to ferment up to 1-2 months.
Burp your jar daily(by removing the lid and placing back on) to release gasses built up.
Once done fermenting, it is ready to eat! You can keep in refrigerator for up to 6 months.