Bring a large pot of lightly salted water to a boil over medium-high heat. Add sweet potatoes, cover, and cook until soft, about 10 minutes. Drain and set aside.
Preheat the oven to 375 degrees F (190 degrees C). Lightly grease a 2-quart soufflé dish. Sprinkle the dish with 1 tablespoon white sugar, shaking the dish to evenly coat the bottom and sides.
Place sweet potatoes into the bowl of a food processor. Add eggs, cream, 3/4 cup sugar, butter, vanilla, salt, cinnamon, cloves, and nutmeg. Process until mixture is smooth. Pour into prepared soufflé dish.
Bake the sweet potato mixture in preheated oven for 20 minutes. Lower oven temperature to 350 degrees F (175 degrees C).
Bake the sweet potato mixture until edges are slightly browned, about 40 minutes more. Serve warm or at room temperature.