Wash the collard greens thoroughly and remove the stems that run down the center. *Do this by holding the leaf in your left hand and stripping the leaf down with your right hand. The tender young leaves in the heart of the collards don't need to be stripped.
Put chicken stock into a large stock put and bring to a low boil.
Stack leaves, cut into ½ to 1-inch square slices.
Place greens in pot with chicken stock and simmer for 45 to 60 minutes, stirring occasionally.
Adjust seasonings to your taste, and serve with red wine vinegar.
Recipe by Faithful Provisions at https://faithfulprovisions.com/collard-greens/