With apple cider, Aleppo pepper, and fresh thyme, this pretty dish offers a lighter take on your usual Thanksgiving sweet potato casserole.
Cooks' Note: If you have a mandoline, use it to slice the sweet potatoes and parsnips—it will help you get thinner, more even slices in less time than by hand. The number of potatoes and parsnips you need to fill your casserole dish will depend on their width, so buy extra just in case, and try to seek out parsnips that are as close as possible to the width of your sweet potatoes.
Recipe information
Total Time
2½ hours
Yield
10–12 servings
Ingredients
Preparation
Step 1
Position rack in middle of oven and preheat to 325°F. Bring cider to a boil in a large saucepan over medium-high heat. Reduce heat to low, add butter, thyme, Aleppo, and 2 tsp. salt, and cook, stirring, until butter is melted. Let cool slightly.
Step 2
Place potatoes and parsnips in a large bowl. Pour cider mixture over and toss to coat. Stack a handful of slices about 3" high, then place vertically in casserole dish. Using a measuring cup or small bowl, keep slices standing up as you go, working around the perimeter and then into the center, forming concentric circles. Continue arranging slices in pan until tightly packed (you may have some leftover). Pour in cider mixture to come halfway up sides of dish; discard remaining cider mixture. Sprinkle with remaining 2 tsp. salt and cover tightly with foil.
Step 3
Bake, covered, 1 hour. Remove foil and brush pan juices over tops of slices with a pastry brush. Increase oven temperature to 425°F and bake, uncovered, until golden brown on top, 35–40 minutes more.
DO AHEAD: After first round of baking at 325°F, let cool, then chill for up to 2 days. Bring to room temperature, then bake, uncovered, at 425°F for 40–50 minutes.
Recipe notes
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