To make this rice pudding dairy free, you will need to replace both the milk and the condensed milk (about 3 1/2 cups in total). The best substitute that I have found is coconut milk or coconut cream. You can also use oat milk, almond milk or soy milk. You will also need to add sugar. Depending on how sweet you like it, you will need about 1/3 cup to 1/2 cup of sugar, added to the rice and the milk before it simmers.