3 lb. sweet potatoes or yams (about 6 medium)
6 tbsp unsalted butter, plus more to grease pan
1 cup light brown sugar
1/4 cup corn syrup
1/4 tsp cinnamon
1/4 tsp nutmeg
1/2 tsp orange zest
1. Preheat oven to 350°F.
2. Peel sweet potatoes and slice into ½-inch pieces.
3. Grease a large baking pan with butter and fill with sliced potatoes.
4. Combine remaining ingredients in a saucepan and stir until melted. Pour over sweet potatoes, making sure to cover each piece evenly.
5. Bake uncovered until potatoes are fork-tender but retain their shape (about 1–1½ hours). For best results, baste and turn sweet potatoes every 15 minutes.
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