Chop the apple and set aside. You can use more apple if you desire.
Melt the butter in a saucepan or pot over medium-high heat, add apple, sugar, vanilla extract, cinnamon and stir for a few seconds.
Add water and bring to a boil.
add oat, a pinch of salt and stir, cook until the water is absorbed and the oat is cooked.
Remove from the heat and add stevia(or brown sugar or honey) and combine
Top with milk, nut (if you desire), more honey (if desired) and more fruits.
It could be enjoyed without nut too.