Ingredients

  • 3 large sweet potatoes, Louisiana yams, about 2 pounds, peeled and grated
  • 4 tablespoons ( 1/2 stick) unsalted butter, melted
  • 1 1/2 cups granulated sugar
  • 3 large eggs, at room temperature
  • 1 (12-ounce) can evaporated milk
  • 1 cup milk
  • 1/2 teaspoon ground cinnamon
  • 1/2 teaspoon ground allspice
  • 1/2 teaspoon grated nutmeg
  • 1 teaspoon vanilla extract
  • Grated zest of 1 lemon, or 1/2 teaspoon lemon extract

Method

  • Position a rack in the center of the oven, and preheat to 375.
  • Lightly butter a 2-quart casserole.
  • Combine the sweet potatoes and butter in a large bowl.
  • In a medium bowl, whisk together the sugar and eggs until light and lemon-colored.
  • Add this to the sweet potatoes, and stir just until blended.
  • Then gradually whisk in the evaporated and regular milks, cinnamon, allspice, nutmeg, vanilla extract, and lemon zest.
  • Pour into the prepared casserole.
  • Bake, stirring well two or three times, until sweet potatoes are tender and the top is lightly browned, about 1 hour.
  • let stand 5 min before serving.