The day before cooking this recipe rinse the rice, place in a glass or ceramic bowl and cover with 2 cups of warm water. Stir in the apple cider vinegar or lemon juice, cover and set aside at room temperature overnight.
The next day preheat the oven to 160C. Drain and rinse the rice well.
Mix the rice, milk, maple syrup, vanilla and cinnamon in a medium sized casserole dish with a lid (12 cup capacity).
Stir to combine, put on the lid and place into the oven for 1 hour. Remove the lid and cook for another 30 minutes until the top is golden.
Serve with a sprinkle of cinnamon, with cream or with poached fruit.