1. Preheat your oven to 425°F (220°C).
2. In a large bowl, whisk together the pumpkin puree, sweetened condensed milk, eggs, cinnamon, ginger, nutmeg, cloves, and salt until smooth and well combined.
3. Pour the pumpkin mixture into the unbaked pie crust.
4. Bake for 15 minutes at 425°F (220°C).
5. Reduce the oven temperature to 350°F (175°C) and continue baking for 35-45 minutes, or until a knife inserted near the center comes out clean.
6. Remove the pie from the oven and let it cool completely on a wire rack for at least 2-3 hours.
7. Serve chilled or at room temperature, garnished with whipped cream if desired.