Rinse the sticky rice with cold water as many times as it takes for the water to come out clear, this is to get rid of all the excess starch to ensure the best texture;
Soak the rice in enough water for at least 6 hours, or overnight, I find prepping the soaking the rice the night before the easiest;
When rice is done soaking, drain well, line a steaming drawer with a muslin cloth or cheesecloth, and place the rice in the middle, fold up the edgest of the cheesecloth to cover it, make sure the cloth is not covering the entire bottom of steaming drawer, there needs to be uncovered holes and space for the steam to come up;
Cover the steaming drawer and bring the water to boil, once you see steam starts to come out, let it steam for 25 - 30 minutes;
Meanwhile, in the sauce pan, mix together the coconut sauce ingredients for the sticky rice, stir over low heat and make sure everything is well dissolved, cover and keep it hot;
When the rice is done steaming, quickly transfer the rice and hot coconut sauce to a bowl, stir to mix evenly, then cover and let it sit for 20 minutes, and stir again go all the way to the bottom of the rice and fold it to the top, cover and let it sit for another 20 minutes;
While waiting for the rice, make the condensed coconut sauce, in a sauce pan combine the coconut milk, monk fruit, and salt, stir to dissolve;
Combine the arrowroot powder and water in a separate dish, then stir into the coconut mixture, continue to heat over low heat until the sauce is thickened to your preferred consistence, remove from heat;
To make the crispy mung beans, rinse the split mung beans, then add to a small pot with enough water to cover them;
Bring to a gentle boil and let it simmer for 5 minutes;
Drain and rinse the beans with some cold water, then toss onto a nonstick pan and toast over medium heat, shake the pan and stir frequently until the beans dry up and become crispy;
When ready to serve, peel and slice the mango, add the sticky rice to a plate, place on the sliced mango, drizzle on some condensed coconut milk sauce, and sprinkle with crispy mung beans, enjoy!