With a fork mash the chestnuts until you have a crumbly kind of flour.
To make the stewed apples simple place the sliced apples and all the spices into a pan with a splash of water. Put the lid on and cook them gently on a medium-low heat for about 20 minutes until they are soft but still keep their shape. Add the date syrup and cook for another minute. Remove the pan from the heat and leave it on one side.
To make the porridge: place the oats into a pan with the almond milk and cook them on a medium heat for 5 minutes until most of the liquid has been absorbed. Add the almond butter, the crumbled chestnuts and the cinnamon and stir everything together. Cook for another 5 minutes until the porridge is thick and creamy. Add more almond milk or water if needed.
To serve pour the porridge into a bowl and add the stewed apples on top. Sprinkle with some chopped pecans and drizzle with more date syrup.
