This filling soup serves well as a healthy dessert (squash is an excellent source of magnesium, potassium, vitamins C and A, and a good source of calcium). It can be served hot or cold and has an interesting texture. I like this recipe because it is simple to make, yet has a lovely flavor. If you enjoy a thicker, more custard-like consistency you can use less than the directed amount of skim milk. If you prefer a soupier thickness, then you should add more skim milk during the simmering process.