In a rondeau or similar pan, bring the water to boil, and add the rice, palm sugar, and lemongrass. Bring back to a boil over high heat, cover with a lid, and cook in an oven at 350°F/177°C for 30 minutes.
Once the rice has absorbed all the water, add the coconut milk, bring back to a simmer over medium heat, and return the pot to the oven. Continue to cook unt