Preheated oven at 200°C (400°F).
Boil the Brussels sprouts for 10 minutes until just tender.
Drain them well and leave them to cool and steam-dry for a few minutes.
Place the sprouts in a large bowl and add the olive oil, spices and Parmesan cheese.
Toss everything together until the sprouts are evenly coated.
Line a baking tray with parchment paper and arrange the sprouts on the tray.
Gently smash each sprout with the bottom of a glass until flattened.
Sprinkle the parmesan over the top of the smashed sprouts.
Bake for 15 to 20 minutes until golden.