This Indonesian bingka labu kuning, or pumpkin cake, is a wonderful alternative to pumpkin pie on Thanksgiving. A versatile cake, bingka’s core ingredient can comprise assorted root vegetables, from cassava to sweet potato and, yes, pumpkin. Once baked, it has a firm outer skin and a rich, custardy filling. Roasting your own pumpkin flesh is preferred, but you can use canned pumpkin in a pinch.