Make It
Step 1
Preheat oven to 425° F.
Step 2
Beat sweet potatoes and butter in large mixer bowl until smooth. Add eggs, grated orange peel, vanilla extract, cinnamon, pumpkin pie spice and salt; beat until smooth. Gradually beat in sweetened condensed milk. Pour into unbaked pie crust.
Step 3
Bake for 10 minutes; reduce oven temperature to 350° F. Bake for an additional 40 to 45 minutes or until set. Cool for 2 hours; refrigerate until ready to serve. Cut into wedges; serve with whipped cream and a dusting of ground cinnamon, if desired.