Whisk eggs and mix with flour, salt and mineral water. Peel and quarter apples and remove the cores. Cut apple quarters into pieces. Boil up about 160 ml water, apple juice, lemon juice, sweetener and apple pieces.
Cook for about 10 minutes at medium heat to a compote. Roast the oat flakes in a pan without fat, remove. Heat 1 teaspoon of oil in the pan, bake 1/4 of the dough to a pancake.
Bake the remaining dough in the same way in the remaining oil. Arrange one pancake with some compote on each plate. Sprinkle with oatmeal and sweetener. Decorate with apple slices and mint as desired.