Adapted from: "Vegetable Soups from Deborah Madison's Kitchen". "I absolutely adore this soup. It's a meal in a bowl that's just filling enough, plus you can have it on the table in less than thirty minutes. The liquid that comes from cooking the quinoa is so tasty that it becomes the chowder's broth. The only caveat about quinoa is that it's important to rinse it very thoroughly in plenty of water before cooking to rid it of any traces of the slightly bitter saponin that naturally coats the grain. Mostly this has been done for you, but a good rinse is extra insurance. Otherwise, quinoa is perfect: a light, highly nutritious, quick cooking grain. And this chowder is perfect for summer--or any time of the year."