Thoroughly wash greens in water. Take 5-10 leaves and roll like a cigar. Cut (almost shave) from tip of roll in very thin strips (1/8 inch strips or less).
Add all ingredients and be sure to chop the walnuts if they are not already chopped. Refrigerate for at least 3 hours in order for apple cider vinegar to “cook” the greens making them tender. Best to sit overnight. Makes 8 generous servings. Leftovers? Try salad as a veggie salad or sandwich topping.
Note that garlic, raisins and walnuts, even the apples are optional. Feel free to add ingredients like dried or fresh tomatoes. This is an inexpensive low calorie family favorite.