2. Wash red beans and peanuts, soak them in water for 2h. Keep the boiled bean soup. Soak the lotus seeds in water for 2 hours and take them out. Remove the lotus core. Wash the red dates and remove the core. Wash the raisins.
3. Wash glutinous rice and black rice, soak for 2 hours and drain.
4. Take a large soup pot, add red beans, peanuts and boiled bean soup, lotus seeds, red dates, raisins, glutinous rice, black rice, pine nuts and 2 ml of water, and boil over high fire. Put two chopsticks horizontally on the pot, put the lid on the chopsticks, turn the fire to medium and small, and cook for 1 hour and 2 minutes. Meanwhile, stir it occasionally with a spoon to avoid sticking to the pot. Add rock sugar, stir slightly, and simmer for 3 minutes.