It takes about 15-20 minutes to cook one cup of rice. Depending on the type of rice, you may need to adjust the amount of water or cooking time. For example, basmati rice generally cooks faster than other types of rice. To cook rice, you will need: -1 cup of rice -2 cups of water -1 tablespoon of butter or oil (optional) Instructions: 1. Rinse the rice in a fine mesh strainer. This will help to remove any excess starch. 2. Add the rice and water to a medium saucepan. Bring to a boil over medium-high heat. 3. Once boiling, reduce the heat to low and cover the pan with a lid. Simmer for 15-20 minutes, or until the rice is cooked through. 4. Remove from heat and fluff with a fork. Stir in butter or oil, if desired. Serve warm.