01 - Thoroughly rinse collard greens in several changes of cold water. Remove any tough stems and chop the leaves into bite-sized pieces. Set them aside.
02 - In a large pot or Dutch oven, combine the smoked turkey pieces and chicken broth. Bring the liquid to a boil over medium-high heat.
03 - Reduce the heat to low, cover the pot, and allow the turkey to simmer for 30 minutes. This process tenderizes the turkey and infuses the broth with smoky flavor.
04 - Introduce the chopped onion and minced garlic to the pot. Continue to simmer for an additional 10 minutes.
05 - Add the prepared collard greens to the pot in batches, stirring gently until they wilt sufficiently to accommodate more greens.
06 - Stir in the apple cider vinegar, hot sauce (if using), salt, black pepper, crushed red pepper flakes, and sugar.
07 - Cover the pot and simmer on low heat for 45–60 minutes, or until the collard greens are exceptionally tender.
08 - Carefully remove the smoked turkey pieces from the pot. Shred the meat off the bones and return the shredded meat to the pot. Discard the bones and any skin.
09 - Taste the collard greens and adjust seasonings as needed for optimal flavor. Serve hot, accompanied by some of the flavorful 'pot liquor' (broth).