To make the rolls, bring a large pot of water to a boil over high heat. With a paring knife, cut out the core from the cabbage. Remove outer leaves. Lower cabbage into boiling water and cook until the leaves soften, about 5 minutes. Remove the cabbage, set aside to cool. When cabbage is cool enough, gently peel off outer leaves from each head. Sometimes I easily pull off about 6, then the cabbage needs to go back in the boiling water for a minute or so to tenderize more leaves. Set aside peeled leaves to cool. Coarsely chop enough of the remaining cabbage to make 2 cups.