temperature (70°F) water, then immediately add the
potatoes and cover the pot. Place in a warm spot and let
stand for at least 1 hour, and up to 3 hours.
When ready to roast the potatoes, adjust the oven racks
to the upper- and lower-middle positions and preheat the
oven to 400°F. Drain the sweet potatoes and transfer to a
large bowl. Toss with the olive oil and season to taste
with salt and pepper.
- Spread the sweet potatoes on two rimmed baking sheets
and roast until the bottoms are browned, about 30
minutes. Carefully flip the potatoes with a thin offset
spatula and roast until the second side is browned and
potatoes are tender, about 20 minutes longer. Serve
immediately.