2 green apples - peeled and sliced into 1-inch 'sticks'
12 oz blueberries
2 teaspoons coriander seeds (optional)
Instructions
Rinse your cabbages and remove the outer leaves. Save a few of the leaves and set them aside. Cut the cabbages in half and cut out the core. Cut each cabbage half into quarters and shred on a mandolin slicer or with a sharp knife.
Put the shredded cabbage in a large bowl and mix in the salt, then massage it well until the cabbage starts to release juices. Let the cabbage sit in the bowl for about 30 minutes to release more juices. Mix in the apple slices, blueberries, and coriander with your hands.
Pack everything tightly into your fermenting crock using your fist. Cover the surface with the reserved cabbage leaves - this will make sure that nothing will float to the top. Place the ceramic weights on top. At this time, all the contents of the crock, including the ceramic weights, should be completely submerged in juices. If that's not happening, let everything sit for a few more hours and see if the cabbage releases more juices to submerge. If there is still not enough liquid after a few hours, make brine with 1 cup filtered water and 1 teaspoon sea salt. Pour the brine into the crock, until the weights are just covered with the liquid. It's important to have everything submerged in liquid at all times to prevent any mold from forming.
Pour brine or filtered water into the water channel and cover the crock with its lid. Let everything ferment for 1-2 weeks, tasting periodically, until the flavor is sour to your liking. Refill the water in the water channel as it evaporates. After a few days of fermenting, the brine should be nice and bubbly. If you have a cool basement, you can also start out the fermentation in a warmer room for the first week, and then move the crock to the basement to finish off the process (the basement should not be too cold!).
Once your sauerkraut is done, pack it into clean glass jars, covered with brine, and keep it refrigerated. Save some of leftover brine to use as a starter in your next fermentation project, which will kick-start the process much quicker. You can also take little shots of the brine for a nice probiotic, booster. Have fun!
Recipe by Golubka Kitchen at https://golubkakitchen.com/red-cabbage-blueberry-and-apple-sauerkraut/