I don't think most people would really need to close their eyes. In case anyone hasn't guessed, I was just kidding about both the "fancy" and the "precisely". It's just something tasty that takes about a minute to make. Blend stuff like this well, and the color comes out uniform. If you use any blackberries at all, it will come out more or less light purple. Otherwise maybe a light shade of pink or red-violet. Methinks the guest troll with vomit-on-the-brain did a fine job of making himself look like an idiot.