Preheat oven to 350° F and grease a 2-1/2 quart casserole with fat of choice.Drain and rinse the soaked yuca root.In a food processor fitted with a steel blade, blend the shredded yuca root, pumpkin purée, spices, salt, tigernut or coconut milk, and maple syrup until fairly smooth.Pour the blended mixture in prepared casserole dish and smooth out the top with a spatula.Pour a little more milk over the top, just enough to cover.Bake for 75 minutes {note: I've found it can take upwards of 90 minutes when using sweet potato}, or until the top looks glossy and the inside is cooked through.