How to Make Sweet Potato Pies Step 1: Roast the Potatoes Preheat oven to 375°F (190°C). Place sweet potatoes on a baking sheet and roast for 45–60 minutes, or until fork-tender. Let cool, then ...

Add potatoes; cook, stirring occasionally, until tender when pierced with a fork, about 16 minutes. Drain, and transfer to a large bowl; add butter, and mash using a potato masher until mostly ...