Preheat oven to 400. Generously grease a 10x15 baking sheet.
Combine the first 5 ingredients together in a bowl. Toss to coat. Spread in a single layer on baking sheet and roast for 25-30 minutes or until potatoes are golden and almost tender.
Add the vinegar, salt and pepper; toss well. Bake 5-8 minutes longer or until potatoes are tender.
Serve hot with freshly sliced green onions and a little coarse sea salt on top for garnish.