Set the oven to preheat at 180° Celsius.
Add the egg whites and a pinch of salt into a mixing bowl. Beat until stiff peaks are formed. This will take between 3-4 minutes. A good way to check if the eggs are beaten enough is to invert the bowl and nothing should fall off. Transfer to another bowl and set aside.
Now, add the egg yolks, oatmeal, raw/brown sugar, melted butter, vanilla and baking powder into the mixing bowl. Beat until well combined, for about 3-4 minutes.
Add the beaten egg whites into the mixture and gently fold in. Be careful not to knock the air bubbles out to keep the batter fluffy.
Add the slivered almonds and raisins and fold in until just combined.
Transfer to an oven safe skillet and bake on the middle rack at 180° Celsius for 20-25 minutes.
When the crust looks golden, take the pan out of the oven.
Rest for a few minutes. Tear the kaiserschmarrn into uneven pieces.
Add some extra slivered almonds and raisins and serve with applesauce.