First make the plum sauce. Put the flesh into a small pan, add the vanilla, cinnamon and sugar or date syrup. Add a dash of water and bring to the boil. When you gate a thick, almost jam-like sauce turn off the heat and let it cool.
Put the oats and flour in a mixing bowl. Add the cinnamon and vanilla, then the oat cream and egg.
Combine well.
Add a couple of spoonful of the plum sauce and mix gently.
Lightly grease a pancake pan and add dollops of the batter. Let them spread out into circles and cook for a couple minutes over low heat, until the surface is no longer runny. Flip them over and cook for another minute or so on the other side.
Transfer them to a plate and make mora pancakes from the remaining batter.
Serve the pancakes lukewarm with the plum sauce.