Ingredients:

  • 1 ½ cups (190g) All-purpose flour
  • ½ tsp (3g) Fine sea salt
  • ½ cup (113g) Cold unsalted butter, cubed
  • ¼ cup (60ml) Ice-cold water
  • 2 cups (450g) Cooked, mashed sweet potatoes
  • ½ cup (115g) Unsalted butter, melted and cooled
  • 1 cup (200g) Granulated white sugar
  • ½ cup (120ml) Evaporated milk
  • 2 Large eggs, room temperature
  • 1 tsp (5ml) Madagascar vanilla extract
  • ½ tsp (1g) Ground nutmeg
  • ½ tsp (1g) Ground cinnamon
  • ¼ tsp (1.5g) Salt

Instructions:

  1. Roast the sweet potatoes whole in their skins at 350°F (175°C) for about 60 minutes, or until very tender. While hot, peel away skins and pass the flesh through a ricer or fine-mesh sieve into a large bowl.
  2. Mix flour and salt in a bowl. Cut in cold, cubed butter until coarse crumbs form with pea-sized chunks. Drizzle in ice water and toss until dough just holds together. Wrap and chill for at least 30 minutes.
  3. Roll out the chilled dough on a lightly floured surface to a 12-inch diameter. Drape over a 9-inch pie plate, trim edges, and crimp. Par-bake the crust for 15 minutes.
  4. Whisk the melted butter into the warm mashed potatoes until fully incorporated and no yellow streaks remain.
  5. Add the granulated sugar, evaporated milk, vanilla, nutmeg, cinnamon, and salt. Whisk vigorously to combine.
  6. Fold in the room-temperature eggs one at a time to ensure the emulsion bonds correctly.
  7. Pour the mixture into the par-baked crust. Bake at 350°F (175°C) for approximately 50 minutes or until the edges are set but the center is still slightly jiggly.