Preheat the oven to 210°C.
Wash the leeks carefully and slice them. Place them in the basket of a steamer and place the cod steaks on top. Cook for 20 minutes.
Prepare the crumble dough: mix the butter with the flour and almonds. Pepper. Line a baking tray with parchment paper and spread the dough. Bake for 5 minutes, until the crumble is golden brown.
Wash, dry and chop the chives. Place a bed of leeks on 4 plates, add a cod steak and cover with almond crumble. Sprinkle with chives. Serve immediately.
