This is a wing-it recipe. Don't worry too much about exact quantities/proportions; when in doubt, taste and modify.
In the first attempt at this recipe, the first cup of coconut milk was liquid, from the dairy variety of coconut milk. (Because someone who shall remain nameless, i.e. Dan, bought the wrong stuff...) It has a lot more sugar, less flavor, and less body; that said, multiple children yummed it up, so it was not the end of the world.
Adding other root vegetables, chopped spinach, or similar might also go well.