How Can I Make Vibrantly Colored Pizzelle Cookies?

Have you ever felt that little pang of disappointment? You spend time carefully mixing the most beautiful, vibrant shades of cookie dough—a soft lilac, a cheerful sky blue, a vibrant fuchsia. You have a vision. But when they emerge from the heat, your beautiful colors have vanished, replaced by a generic, muddy brown. The flavor is there, but the visual magic is gone.