Wash the potatoes and cook covered for about 20 minutes. Quench, peel and let cool
Cut the potatoes into slices. Peel and finely chop the onion. Boil up 1/4 l water, vinegar, some salt, pepper, stock and onion. Pour over the potatoes and leave to stand for at least 1 hour
In the meantime clean, wash and drain the radish and cucumber. Peel the cucumber. Cut both into thin slices. Clean, wash and drain the rocket (possibly already with the starter)
Line a baking tray with baking paper and brush with oil. Debark the toast and crumble finely. Whisk eggs. Wash chicken fillet, dab dry and cut into about 20 flat cutlets. Season with salt and pepper. Turn first in the flour, then in the egg and finally in the breadcrumbs. Place on baking tray
Bake in the preheated oven (electric cooker: 200 °C/circulating air: 175 °C/gas: level 3) for approx. 30 minutes. Turn over after half the baking time
Fold the crème fraiche into the potato salad. Mix cucumber, radishes and rocket into the salad just before serving. Season to taste with salt and pepper
Put 2-3 escalopes on a skewer as desired. Serve with the potato salad. Garnish with lemon wedges and caper apples