Cook 4 chopped bacon slices in a skillet until crisp. Remove with a slotted spoon. Add 1/3 cup each apple cider vinegar and chopped dates to the drippings; swirl until warm. Pour over 1 small bunch shredded collard greens; add the bacon and ¼ cup chopped toasted walnuts. Season with salt and pepper and toss.
Photograph by Justin Walker