In a large pot add about an inch of water. Bring to a boil. (You can also use a steamer pot). Add the cabbage to the pot, cover, and let steam for about seven minutes. It will take anywhere from 5-7 minutes for the first leaf to come off. With a pair of tongs, peel off the first leaf. It will come of quite easily. Keep steaming the cabbage until you have removed all of large leaves – you should be able to remove at least 15-20. Lay each leaf out on a towel to dry.
Take one leaf, outer side down, and place on a clean work surface. Scoop about two to three tablespoons of the rice mixture and put in in the center of the leaf. Fold the stem end up and cover the mixture, then tuck each side in. Consider rolling lightly until completely rolled up. Set aside, seam side down. Finish until you have used all of your leaves (you will probably have leftover rice mixture).
*Note: I have tried to steam the cabbage leaves in the Insta Pot with NO success. Steaming them on the stove top allows you to remove each leaf as it is done, one at a time, whereas the InstaPot tends to “cook” them and they stick together. Stick with the Stove Top! I have also made this many times with no Sauerkraut and it is quite delicious.