In a large stockpot, bring water to a boil then add onions. Stir for 30 seconds then remove with a slotted spoon. Peel onions then arrange on a jellyroll pan. Sprinkle onions evenly with rosemary.
In a medium sized bowl, whisk together wine, soy sauce, balsamic vinegar, oil and honey then drizzle over onions.
Bake for 30 minutes stirring once after first 15 minutes.
Remove onions with a slotted spoon and set aside in a bowl. Pour remaining balsamic sauce from pan into a small saucepan. Bring to a boil then reduce heat and simmer for 2 minutes until slightly syrupy.
Pour balsamic sauce over onions then toss to coat.
TEXT VERSION OF NUTRITION FACTS: Serving Size: 1/8 of recipe (273 g) Servings Per Recipe: 8