Cook rice as directed in Coconut White Rice recipe, or as directed on package. You can also use leftover rice.
Put 3 cups rice, and the milk together in a medium saucepan.
Cook on medium low for approximately 10-15 minutes, or until thick and creamy.
Lightly beat egg.
Temper eggs with hot rice mixture.
Add tempered egg back into hot rice mixture.
Add sugar to rice. Combine and cook, stirring constantly, for 2-3 minutes.
Remove from heat and add butter and vanilla, stir until completely incorporated.
Serve and enjoy while still warm.