Step 1

In a large bowl, combine the first 7 ingredients; toss to coat. Transfer to a greased 15x10x1-in. baking pan.

Step 2

Bake at 425° for 45-50 minutes or until potatoes are tender, stirring once.

Step 3

Meanwhile, in a large skillet, saute onions in oil until softened. Stir in sugar. Reduce heat to medium-low; cook for 30-40 minutes or until deep golden brown, stirring occasionally. Stir in vinegar.

Step 4

Transfer roasted potatoes to a large bowl; stir in caramelized onions.