To make the carrot pureé, weigh 2-3 carrots so they are approx. 180g. Peel, top and tail then cut into small chunks. Place in a steamer for 10 minutes until cooked. Leave to cool slightly, then place the carrot in a small blender pot with 2-3 teaspoons of the steaming water and blend to a soft pureé. Leave to cool until you are ready to make the scones (it still works ok if the pureé is still warm).