1/4 cup (packed) light or dark brown sugar
2 tablespoons unbleached all-purpose flour
2 tablespoons butter (melted)
3/4 cup chopped pecans
1 can (15 ounces) sweet potato purée (or 1-2/3 cups cooked yams)
1 can (14 ounces) sweetened condensed milk
1 large eggs
1 teaspoon ground cinnamon
1 teaspoon ground ginger
1/2 teaspoon salt
1/4 teaspoon ground nutmeg
1/4 teaspoon ground allspice