Ingredients
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3 lbs medium sweet potatoes
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Cooking spray
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1 cup chopped walnuts
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1/2 cup (1 stick) butter
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1/2 cup brown sugar
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2 tsp pumpkin pie spice
Steps
1
Preheat oven to 350°F. Heat a large pot of salted water to a boil. Peel the potatoes and add to pot. Cook 20–30 min., until mostly tender. Remove potatoes with a slotted spoon and let cool.
2
Meanwhile, coat a 9x13-inch baking dish with cooking spray. In a 10-inch skillet, add the walnuts and toast on medium 1–2 min., until golden, stirring constantly. Remove from pan and reserve nuts. Wipe out skillet.
3
In same skillet, melt the butter on medium. Stir in the sugar, pumpkin pie spice, ½ cup water, and salt, to taste, stirring until sugar is dissolved. Remove from heat.
4
When cool enough to handle, cut potatoes into ½-inch slices. Arrange half of potato slices in baking dish, overlapping slightly, and drizzle with half of spiced butter. Repeat layering and drizzle with remaining potato slices and butter.
5
Cover with foil and bake 20 min., until potatoes are tender. Uncover, top with walnuts, and bake another 5 min.
Tips
To make this ahead, prepare recipe through STEP 4 and refrigerate up to 1 day. When ready to serve, continue with STEP 5.