Prepare ingredients: rice, millet, glutinous rice, purple rice, mung beans, red beans, red dates, peanuts, a little cooking oil and a proper amount of rock sugar. Boil Laba porridge, cereal ingredients: rice, glutinous rice, millet, etc. should be put a little more, so that porridge can be boiled thick. 1, before boiling Laba porridge, soak the hard cereals and beans in cold water for more than 3 hours in advance, so that the ingredients can absorb water and soak completely, and the raw and cooked porridge can be consistent. 2. Except for the ingredients soaked in advance, other ingredients are washed twice with clear water and then dried. 3. Add 5 times of water to the pressure cooker, add all the ingredients after boiling, skim off the floating foam, add a little cooking oil, cover the lid, start timing after the pressure cooker is started, and keep the pressure on medium and high fire for about 20 minutes. 4. Turn off the fire after 20 minutes, open the lid of the pressure cooker after natural pressure relief, add a proper amount of crystal sugar, then fire, stir with a spoon, and cook for about 1 minute, then turn off the fire after the crystal sugar is boiled until the porridge is thick.