Preheat the oven to 180°C.

Spread the Parmesan over a silpad, place on a baking tray and bake for 5 to 10 minutes, or until molten and golden. Allow to cool. Rub olive oil over the steak and cut into large cubes.

In a hot pan over a high heat, sear the steak cubes until done to your particular preference. Meanwhile, add the nectarine, onion, coriander and sherry vinegar to a bowl and toss lightly.

Serve as a salsa with the succulent pan-fried steak and include shards of crisp Parmesan.

Finally, season to taste and serve with horseradish sauce on the side.