Before you begin cooking, you need to wash the rice. Fill a large bowl with cold water and pour in the rice. Use your hand to stir the rice in one direction. The water should get cloudy, so pour off the cloudy water. Refill the bowl with water. Continue rinsing the rice until the water is clear. Washing the rice removes surface starches and any debris. After you have you rinsed the rice, soak it. Place the rice in a bowl of cold water and let it soak for 30 minutes to 2 hours. Soaking the rice helps the grains expand and be fluffy. You can soak the rice in the water you plan on boiling it in. If you do this, then the amount of water you need to use is 1.25 times the amount of rice. For 2 cups of rice, use 2 1/2 cups of water. If you are adding mixed vegetables, such as carrots, beans, tomatoes, cauliflower, or peas, cut them into smaller pieces. Make sure you wash the vegetables and set them aside, ready to be added to your rice.

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Write a summary of the previous text in Vietnamese:
Vo gạo basmati. Ngâm gạo. Cắt nhỏ rau củ.