4 pounds sweet potatoes, peeled and sliced into 1/2 inch pieces 1 1⁄2 sticks unsalted butter, melted
1 cup brown sugar, packed
1⁄2 cup granulated sugar
4 tablespoons ground cinnamon 3 tablespoons ground nutmeg
2 tablespoons ground ginger
2 tablespoons cornstarch
2 tablespoons lemon zest 1⁄2 teaspoon salt
Preheat oven to 375°F.
Combine sugars, cinnamon, nutmeg, ginger, flour, zest and salt in a medium bowl. Place a layer of potatoes in 13x9x2” glass baking dish. Generously sprinkle sugar mixture over sweet potatoes and pour 2 tablespoons butter over sugar mixture. Continue the process until there are about 4-5 layers. Completely cover dish with foil.
Bake for 50 minutes. Uncover and continue to bake until potatoes are tender and syrup thickens (basting occasionally), about 20 minutes.
Follow Alexis Garrett Stodghill on Twitter at @lexisb.