In a saucepan, add the rice for sushi and the water, cover the saucepan and let it cook for 10 minutes.
Meanwhile, in a bowl, add the rice vinegar, the sugar and the salt, mix well.
Once you’ve done that and the rice has cooked through, transfer this vinegary mixture to the saucepan with the rice, cover the saucepan again and let it all cook for another 5 minutes.
Transfer all this rice to a medium bowl, add the Nori sheets chopped into thin strips, just like shown in the video, mix until incorporated and set aside.
Now, in a medium baking dish lined with a plastic bag, add 200g of diced salmon.
Cover the salmon with 150g of cream cheese and spread evenly until flat.
Add the Japanese cucumber chopped into small cubes.
Add half of the rice we prepared.
Add another 150g of cream cheese and spread evenly until flat.
Add another 200g of diced salmon.
Then add the avocado chopped into cubes and finally, the rest of the rice.
Fold the edges of the plastic bag over the dish, just like shown in the video.
Unmold the sushi on a chopping board and sprinkle sesame seeds to taste all over it.
Serve.