Bake the Rösti corners in a preheated oven (electric range: 200 °C / fan oven: 175 °C / gas: level 3) for approx. 20 minutes. Turn Rösti over after 8 minutes
Cut the avocado in half, remove the seeds. Peel avocado, cut into slices. Sprinkle with lemon juice.
Cover the rösti corners with avocado and ham. Add 1 teaspoon of crème fraîche to each and season lightly
Drink: cool white wine