Makgeolli is a traditional Korean alcoholic drink that is made by fermenting rice and a fermentation starter called Nuruk 누룩.
Wash rice a few times in cool water until water runs clear. Soak rice in water for 2 hours. Drain rice in a colander for 30-45 minutes. Completely remove any excess water. Steam for 40 minutes, then allow to cool.
Sanitize your brewing container and add water and Nuruk. When rice is cooled, add rice to Nuruk water mix. With your hands, gently mix everything so they are evenly mixed. Cover loosely and put in a cool, dry, dark place for 10-14 days.
Mix twice a day for the first 1-3 days. On day 4+, don't mix and keep lid completely closed. Once brewing is complete, use a fine linen cloth or mesh filter bag to filter out the liquid.
Makgeolli is ready to drink immediately, but I suggest storing in the refrigerator for a few days so it can age a little and mellow out even further. Best served cold.