Boil the chicken breasts until well-cooked. Remove the bones from the chicken. Put the chicken in a food blender with 1 1/2 cups of milk and the cardamom. Blend thoroughly then strain through a fine mesh metal sieve. Sweeten the remaining milk. Add the rose water and bring to a boil over low heat. Add the blended chicken to the milk and stir. Add the rice flour, stirring constantly until the mixture thickens. Pour the mixture into a dish and leave aside to thicken. Sprinkle with ground cinnamon, and place in the refrigerator to cool.