About sushi rice
The rice I use is a special rice for sushi: round, transparent grains, very sticky. I am using Dos Hermanos , which is produced here in the country. If they don’t get it, they can try the Double Carolina variety, which is more common. It will not be exactly the same but I promise you that it will be successful sushi restaurant.
rice vinegar
It can be replaced by spirit vinegar. In this case we use more sugar. Instead of 2 tbsp. of sugar for every 4 of vinegar we put the same amount: 4 and 4.
The fish that can be used
Salmon and bluefin tuna are usually used. My fishmonger recommended sole and I tried it. It’s not bad but I prefer salmon. the important thing is that it is a soft fish, that it falls apart in the mouth. And of course fresh. To know how it is cut for niguiri (or sashimi), watch this video , it is in English but it is quite clear.