1. First, soak the rice. DO NOT RINSE the rice. You need all of that starch. Soak sushi rice in the water for 20–30 minutes.
2. After soaking, dump the rice/water mixture into a medium saucepan. DO NOT DRAIN the rice. Add the coconut milk and brown sugar, stir.
3. Bring rice to a boil. Reduce heat and simmer for about 10 minutes until liquid is mostly absorbed.
4. Remove from heat, stir and set aside. The rice will absorb the last of the liquid while it rests.