Brown Sugar-Glazed Sweet Potatoes with Marshmallows

4 pounds red-skinned sweet potatoes (yams), peeled, cut into 1-inch pieces
2/3 cup packed golden brown sugar
5 tablespoons butter1 teaspoon ground cinnamon
1/2 teaspoon salt
1/4 teaspoon ground nutmeg
Pinch of ground ginger
2 cups miniature marshmallows
1/2 cup sliced almonds

Preheat oven to 375°F. Arrange potatoes in 13 x 9 x 2-inch glass baking dish. Combine sugar, butter, cinnamon, salt, nutmeg and ginger in heavy small saucepan over medium heat. Bring to boil, stirring until sugar dissolves. Pour over potatoes; toss to coat. Cover dish tightly with foil. Bake potatoes 50 minutes. Uncover; bake until potatoes are tender and syrup thickens slightly, basting occasionally, about 20 minutes. Increase oven temperature to 500°F. Top potatoes with marshmallows and nuts. Return to oven; bake until marshmallows begin to melt and nuts begin to brown, about 3 minutes.