Peel the apple, cut out the stem and chop the apple into small pieces
Add the chopped apple, cinnamon and 1 tbsp of hazelnut milk into a small saucepan and cook for about 5 minutes on medium heat. Stir in between to ensure that the apple doesn't stick to the pan.
After about 5 minutes, once the apple is cooked, empty the cinnamon-apple into a clean dish.
For the Porridge:
Into the same saucepan add all the ingredients for the porridge: rolled oats, sultanas, chia seeds and hazelnut milk.
Cook the porridge for about 5 minutes on medium heat, while making sure to stir regularly.
Once the porridge is cooked and creamy, add it into your serving bowl and top it with the cinnamon-apple.