Cook rice and water on a porridge setting for 20 mins using the ‘quick release’ setting. Then, turn on the saute feature, add milk, lemon rind, and sugar, and mix continuously for 20 minutes as mixture thickens.
Turn off the Instant Pot, then add eggs, mixing quickly to prevent scrambling. Remove lemon rind.
Pour into a serving dish and garnish with cinnamon in a criss-cross pattern. Let settle slightly.