This is a test of commonsense. Complete the next sentence:

How to make roasted aubergine soup
Cube aubergines and place in a large bowl of salted ice water.
Let sit for 20 minutes.
Preheat oven to 450 f (232 c).
Lay cubed aubergines on an aluminium-foil lined baking sheet. Drizzle over olive oil, then dust with sea salt, cinnamon, and cumin.