Prepare these sweet potatoes ahead, and pop the casserole into the oven while the turkey rests.
4pounds sweet potatoes, peeled and quartered
4tablespoons unsalted butter, divided
4 teaspoons fresh lemon juice
1-1/2teaspoons kosher salt
1-1/4teaspoons ground ginger
¾teaspoon ground allspice
¾teaspoon ground coriander
½teaspoon ground chipotle pepper (or ¼ teaspoon cayenne pepper)
¼teaspoon freshly ground black pepper
1cup fat free or regular half-&-half
No nutrition information available
Place sweet potatoes in a 4 quart saucepan and add water to cover by 1-inch. Bring to a boil, then reduce heat and simmer until tender, about 20 to 25 minutes. Drain and let cool slightly. Coat a 2-quart oval or rectangular ceramic baking dish with ½ tablespoon of the butter. Preheat the oven to 350°F.
Place the cooked, slightly cooled sweet potatoes in the Cuisinart® Food Processor fitted with the metal “s” blade. Add 2-1/2 tablespoons of the butter, the lemon juice, salt, ginger, allspice, coriander, chipotle powder, and pepper. Pulse to begin blending, then process continuously adding the half-&-half through the small feed tube until the mixture is creamy and homogenous, about 1 to 2 minutes. (If you have a 7-cup work bowl, do this step in 2 batches.)
Transfer to the prepared baking dish. Cut the remaining 1tablespoon of butter into 8 pieces and dot the top of the potatoes with the butter. Bake in the preheated 350°F oven for 40 to 45 minutes, until heated though and slightly browned on top. Serve hot.
Spiced sweet potatoes may be prepared up to 2 days ahead. Cover and refrigerate. Remove from refrigerator and let stand at room temperature 30 minutes before baking.