Soak oat flakes in apple juice for a while.
Cut pear, plums and grapes into small pieces and add to the oat flakes.
Season with cinnamon, bring to the boil briefly and let simmer.
Pour into a bowl, spread the yogurt over it, decorate with fruit pieces and the chopped walnut.
Preparation Tip:
If you like it sweet, you can sweeten it with honey or other sweeteners.