Cook's Note:
Depending what you're going to serve the sauce with, you may want to add some water before cooking the berries. If you want something a little thicker, to serve over ice cream for example, then don't add any water. On the other hand, if you want and lighter texture like I did, toss in a few tablespoons of water before heading to the stove. Be careful; we're not boiling and reducing the sauce, so we can't cook out excess liquid.