Step 1: Prepare the Sweet Potatoes : Peel and cube sweet potatoes. Boil or steam until tender, about 15–20 minutes. Mash until smooth and let cool slightly.
Step 2: Preheat Oven and Prepare Crust : Preheat oven to 350°F (175°C). Place the pie crust in a 9-inch (23 cm) pie pan and crimp edges.
Step 3: Make the Filling : In a large bowl, combine mashed sweet potatoes, granulated sugar, brown sugar, melted butter, and evaporated milk. Beat in eggs one at a time. Stir in vanilla extract, cinnamon, nutmeg, ginger, and salt until smooth and well combined.
Step 4: Assemble and Bake : Pour the filling into the prepared pie crust and smooth the top with a spatula. Bake at 350°F (175°C) for 50–55 minutes, or until the center is set and slightly jiggly. Allow the pie to cool completely on a wire rack, then refrigerate for at least 2 hours for the best texture.
Step 5: Prepare Whipped Cream : In a chilled bowl, beat heavy cream, powdered sugar, and vanilla extract until soft peaks form.