1
Arrange rack to top position and preheat oven to 425 degrees. Wash and dry produce.
Peel and dice sweet potatoes into 1⁄2-inch pieces.
Place sweet potatoes in a medium pot with enough salted water to cover by 2 inches. Bring to a boil and cook until tender, 10-12 minutes.
Reserve 1⁄2 cup sweet potato cooking liquid, then drain and return sweet potatoes to pot. Cover to keep warm until ready to mash in Step 5.