Place the pork cubes, butternut squash, onion, carrots, and garlic into the slow cooker.
Pour the apple cider and chicken broth over the ingredients.
Sprinkle in the thyme, salt, and pepper, then stir everything to combine.
Cover the slow cooker and cook on low for 7 to 8 hours, until the pork is fork-tender.
Ladle the stew into bowls and top each serving with the chopped parsley.