This dish is so different yet so delicious. I have been waiting all year so that I can cook this for Thanksgiving to wow everyone. My boyfriend ate every bit of the leftovers, and he can't wait for me to fix it again!
In a large saucepan combine milk, cream, nutmeg, cinnamon, salt, and pepper. Gently fold in sweet potatoes. Bring to a simmer and allow sauce to thicken.Preheat oven to 350 degrees F.
Butter a 3-quart baking dish. Combine the bread crumbs, butter and Cheddar to make the gratin topping. Transfer the potato mixture to the baking dish and sprinkle with the gratin topping. Bake until the potatoes are cooked through, about 35 to 45 minutes.