Candied Sweet Potatoes

预热烤箱至400°F。安排红薯片in a shingle pattern in a 13- x 9-inch baking dish in 3 to 4 columns total.

Melt butter in a medium saucepan over medium. Add granulated sugar, brown sugar, and maple syrup; cook, stirring constantly, until melted, about 1 minute. Bring to a simmer over medium. Add cream, and reduce heat to medium-low; cook, stirring often, until thick and saucy, about 5 minutes. Remove from heat; stir in salt, cinnamon, vanilla, and 1/8 teaspoon of the nutmeg. Pour mixture evenly over sweet potatoes. Cover dish with aluminum foil.

Bake in preheated oven until sweet potatoes start to soften, about 30 minutes. Remove from oven; remove and discard foil. Gently brush some of the glaze in dish over sweet potatoes to coat. Continue baking, uncovered, until sweet potatoes are tender and glaze is bubbling and sticky, about 20 minutes. Remove from oven; brush more glaze over sweet potatoes. Let cool 30 minutes. Sprinkle with orange zest, sea salt, and remaining 1/8 teaspoon nutmeg. Serve.