Sweet Potato Pie - Once Upon a Chef

Ingredients

• 2 large sweet potatoes ((about 2¼ lb/1 kg))
• 4 tablespoons unsalted butter, (softened)
• 1 cup + 2 tablespoons (packed) light brown sugar
• 1 large egg, (at room temperature)
• 3 large egg yolks, (at room temperature)
• 1 teaspoon vanilla extract
• ¼ teaspoon salt
• ¾ teaspoon ground cinnamon
• ½ teaspoon ground nutmeg
• ⅛ teaspoon ground cloves
• ⅛ teaspoon ground ginger
• 1 cup evaporated milk
• 1 (9-in) deep-dish frozen pie crust
• 1 cup heavy whipping cream, (cold)
• 2 tablespoons confectioners' sugar