3 large Yukon Gold potatoes, cut into 1½-inch (4-cm) chunks
1sweet potato, cut into 1½-inch (4-cm) chunks
3tablespoons melted herb butter, skimmed from the surface of the liquid in the turkey pot or made fresh
Salt and freshly ground black pepper
Preheat the oven to 450°F (230°C). Put a baking sheet in the oven to heat.
In a large bowl, toss the Yukon Gold and sweet potatoes with the butter and a couple of pinches of salt and grindings of pepper. Spread in a single layer on the hot baking sheet and roast until nicely browned on the bottoms and tender throughout, about 15 minutes. Serve.