Though, usually I add roasted beetroot puree or raw grated beets, but next time you have inspired me to try adding cooked and grated beetroot to a baked treat. (loveisinmytummy.com)
After setting it aside to cool for a while, I peeled the beetroot, chopped it into pieces and then processed it in my electric blender until it became a smooth beetroot puree. (dishbydish.net)
Maybe it would be dark red if I had added beetroot puree instead of juice only. (cookingninja.com)