This recipe requires you to smoke the salmon and sea urchin. If you do not have a smoker, you can place dry wood chips into a small pan and burn on the stove or with a blow torch. When the chips are smoking – place the pan into a large baking dish with the salmon and urchin and cover tightly with foil so the smoke from the chips is absorbed – then cook in the oven. You can also skip this step and just roast salmon and sea urchin instead.