Inspect the cabbage, and remove any outer leaves of the cabbage that show signs of decay or bruising. Remove a second leaf, keeping it as whole as possible, and set this leaf aside for later.
Homesteading Hack: Once you remove the core, set it aside for the next time you make chicken bone broth. Alternatively, you can add the bruised outer leaves to your compost pile or feed them to your livestock. Finely shred the cabbage by cutting it against the grain. Dice the apples and jalapeño, and grate the fresh ginger.
Place shredded cabbage, jalapeño, apples and ginger in a large bowl and sprinkle with the salt.
Toss the cabbage with clean hands to incorporate the salt evenly throughout the vegetables. After thoroughly combining the vegetables and salt, allow the cabbage to sit for about an hour to allow the salt to extract the liquid from the cabbage. Your final product should have about ⅓ of the volume as when you began.
Toss the cabbage with clean hands to incorporate the salt evenly throughout the vegetables. After thoroughly combining the vegetables and salt, allow the cabbage to sit for about an hour to allow the salt to extract the liquid from the cabbage. Your final product should have about ⅓ of the volume as when you began.
Once the cabbage is packed tightly in the jar, you will have leftover juice in the bottom of your bowl. Before adding this to the bowl, place your fermentation weight into the jar, then add the remaining liquid.
Homesteading Hack: If you don't have a fermentation weight, this is where that cabbage leaf comes in. Tear off the soft part of the reserved cabbage leaf and tuck it into the jar on top of the cabbage. This will help weigh it down so the cabbage remains submerged underneath the surface of the liquid. It is critical that all of the cabbage stays under the surface of the liquid, or it will mold. Then, add the remaining liquid.
Top off the jar with the remaining cabbage juice, leaving about an inch of room at the top. This will avoid any spillage that may happen during any movement caused by the fermentation process. Cap your jar loosely with a two-part canning lid, but do not seal it tight. Leaving the lid loose will allow gas build-up to escape during the fermentation process.
Place your jar inside a dish to catch any overflow of the brine while it is fermenting. Leave on the counter at room temperature for about 7-14 days (give or take, depending on how warm or cool your kitchen is). You should notice the fermentation activity (or bubbling), and the smell will change to sour or acidic.