After the rice and liquid mixture has been brought to a boil, add 1/2 cup of water and them bring it to a boil again. Remember to stir often. Then after the second boil, add 1/2 of a cup of stock. Bring it to a boil again. Keep repeating and alternating between water and stock until you reach your desired consistency. You can add more stock to water. This will result in a creamier and thicker congee. More water will result in more of a runny consistency, and not as much flavor. This congee is different from ones prepared outside because the ones outside are made with all water. In my opinion ,this is much more flavorful because of the stock!