01 - Heat butter in large skillet over medium heat. Add onion and sauté 2-3 minutes until translucent. Add shredded cabbage and pinch of salt; cook, stirring occasionally, 10-12 minutes until softened. Let cool slightly.
02 - Combine bread cubes and milk in large bowl. Let soak 5-10 minutes until bread is soft, then mash gently with fork.
03 - Add eggs, flour, nutmeg, pepper, salt, parsley, and cooled cabbage to soaked bread. Mix thoroughly until uniform, slightly sticky dough forms.
04 - With damp hands, shape mixture into 8 round dumplings.
05 - Bring vegetable broth to gentle simmer in large pot. Carefully add dumplings. Simmer (do not boil) 18-20 minutes until dumplings are firm and cooked through.
06 - Remove dumplings with slotted spoon. Serve hot, garnished with extra parsley if desired.