1. In a medium size cooking pot, add the steamed rice and water. Bring it to a boil.
2. Once it boils, reduce the heat to low and simmer for about 15 to 20 min. Add more water if you like a more soup-like texture. The rice should be soft and thickened. Add salt and mix. If 1/2 tsp is not enough salt for you, then add more salt as per your taste.
3. Put the stove back to high heat and pour the beaten egg over the rice. Mix with a cooking paddle gently.
4. Serve in a rice bowl and garnish with green spring onion or another topping of your choice. I also like sesame, soja, umeboshi, furikake, konbu etc...