Boil the cinnamon sticks in water. Rinse the rice and add it to the pot. Cook until the rice is tender and most of the water is absorbed, but not dry.

Add the homemade sweetened condensed milk, stir, and let it simmer for 5 minutes, stirring to prevent sticking. Turn off the heat and let it rest for 20 minutes.

If the pudding is too thick, gradually add coconut milk until you reach your desired consistency. Garnish with your favorite toppings and refrigerate.