1. | Grind rice, gradually adding water, till smooth. |
2. | Bring milk to boil in the Bowl on medium-high heat, stirring occasionally. Reduce heat to medium. |
3. | Boil, stirring and scraping the sides occasionally to prevent skin forming on top and milk thickening on sides, till milk is reduced by about 1 cup (about 15 minutes). |
4. | Add sugar. Stir till sugar is dissolved. Remove from heat. |
5. | Mix ground rice. Gradually add to milk, stirring constantly. |
6. | Simmer on low heat for about 20 minutes, stirring constantly. |
7. | Pour firni into 6 shallow dessert bowls (about ¾ cup in each). Sprinkle cardamom and pistachio nuts. Allow to cool to room temperature. Refrigerate. Serve cold. |