Remove and discard outer leaves of cabbage, reserving 1.
Cut cabbage into quarters, and remove corses. Thinly slice cabbage (you could use mandoline slicer). Shred carrot.
Place cabbage and carrot in a large bowl, add salt, squeeze cabbage gently to help to release water. Cover the bowl and set aside for an hour.
Squeeze the cabbage to release more liquid.Pack the cabbage into your jar, pressing down.Place 1 reserved cabbage leave on top, pushing down.Weight the cabbage down.
Check your sauerkraut every few days after 1 week to taste (scoop any development of yeast).