For the oat, mix oatmeal with cinnamon and pour into a glass. Now fill up with hot water until the oat flakes are covered. Add apple puree and yogurt and sprinkle with a little cinnamon. Let stand overnight.
For the granola, mix the remaining oat flakes, the seeds and / or nuts with cinnamon. Heat the coconut oil in a pan and add the mixture and fry gently for about 10 minutes. Then carefully add the maple syrup and let the mixture caramelize a bit. Now let the whole thing cool down.
So that the granola stays crispy on the oat, pour it over just before consumption.