Roasted Sweet Potato Cider Salad

2 large sweet potatoes, peeled, quartered lengthwise
1 T plus 1 t extra virgin olive oil, divided
2 T scallions, finely diced
3 T apple cider vinegar
1/8 t salt

Preheat oven to 400 degrees. Place sweet potatoes in large baking dish, drizzle with 1 T oil, and toss potatoes until evenly coated. Cover pan with foil and bake 20 minutes. Uncover pan, turn potatoes and bake uncovered until tender and golden brown, about 15-20 minutes. Cool potatoes and chop into bite-size pieces. Transfer to serving bowl.

Whisk vinegar with remaining teaspoon of oil and salt. Pour over potatoes, add scallions, and stir gently until well combined.