We love this recipe for Maple Candied Sweet Potatoes from 1939. We made a few minor tweaks for our new-century palates.
6 medium-size sweet potatoes, scrubbed, unpeeled
1/2 cup maple syrup
1 tablespoon unsalted butter
1 teaspoon salt
1 cup apple cider
Arrange oven rack in middle position and heat to 325°.
In a large pot over high heat, boil sweet potatoes, until nearly cooked through, about 20 minutes. Drain.
When cool enough to handle, peel and arrange potatoes in a single layer in a 13×9-inch baking pan.
In a medium-size saucepan over medium-high heat, bring maple syrup, butter, salt, and cider to a boil.
Pour over potatoes and bake in slow oven 1 hour, or until potatoes are glazed and syrup is of desired consistency.