To boil eggs in a rice cooker, follow these steps: Place eggs in the rice cooker, add water to cover them by about an inch, and set the rice cooker to the "Cook" or "Boil" setting. Once the rice cooker reaches a boil, let it cook for about 12-15 minutes for hard-boiled eggs. For soft-boiled eggs, reduce the cooking time to 8-10 minutes. The cooking time can vary slightly depending on the rice cooker's power and the size of the eggs.

The reason for these cooking times lies in the heat distribution and the temperature control of the rice cooker. Rice cookers are designed to maintain a consistent temperature around 212°F (100°C), which is ideal for boiling water and cooking eggs. The longer cooking time for hard-boiled eggs ensures that the egg whites and yolks are fully cooked through. On the other hand, soft-boiled eggs require less time to achieve the desired doneness, with the yolks remaining slightly runny. It's important to note that the cooking time can vary based on the rice cooker's power and the size of the eggs. Larger eggs may take a few minutes longer to cook than smaller ones. Additionally, the cooking time can be adjusted based on personal preference for the level of doneness of the eggs.