Instructions: 1. Prepare Sweet Potatoes: Peel and cube sweet potatoes. Boil in a large pot of water until tender, about 15-20 minutes.
2. Preheat Oven: Preheat your oven to 350°F (175°C).
3. Mix Pie Filling Ingredients: In a mixing bowl, combine mashed sweet potatoes, granulated sugar, melted butter, eggs, milk, vanilla extract, cinnamon, nutmeg, and orange zest.
4. Assemble Pie: Place the unbaked pie crust in a pie dish.Pour the sweet potato mixture into the pie crust, spreading it evenly.
5. Bake: Bake the pie in the preheated oven for 55-60 minutes, or until the center is set.
6. Cool and Serve: Allow the pie to cool for at least 30 minutes before slicing. Serve the orange zest sweet potato pie with whipped cream or ice cream if desired.