Cut avocado into thinner slices. Peel the cucumber and cut into half lengthwise.
Place your nori seaweed on your Sushi mat. Use a sushi mat wrapped in plastic so that the sushi won't stick.
Spread almost half of your cooked (keep about 2-3 Tablespoons aside) rice all over your nori seaweed. The rice has to cover the seaweed completely and it needs to be an even layer.
Turn the rice covered seaweed and spread the 2-3 Tablespoons of rice over one half of your seaweed, but keep about 1 inch or 2-centimeter distance from the bottom end of your seaweed. Spread it out to an even layer.
Pour mayonnaise in one line in the center of the rice.
Place a cucumber half over the mayonnaise and arrange 3 avocado slices on that in one line.
Place 3 surimi in the center in one line.
Take the seaweed with the toppings to the border of your plastic-wrapped mat, hold with both hands and start to roll in your sushi.
Continue to roll in your sushi and press down with both hands to create a tight wrap. Roll until you have a tight sushi roll
Place sushi roll on one side of your mat and sprinkle sesame seeds all over the rest of the mat.
Roll so that the inside out sushi is picking up the sesame seeds and the roll is completely covered with sesame seeds.
Take the sushi from the bamboo mat and cut into 1 inch or 2 centimeter thick slices or so that you are left with 8 thick slices.
Arrange the california roll on a serving plate and serve with soya wasabi dipping options and some pickled sliced ginger.
Use cooked sushi rice only and please follow my recipe to make sushi rice.
Surimi is also called imitation crab meat. You can use crab meat too or cooked shrimp.
Nori are seaweed sheets. Use unflavored plain maki sushi nori seaweed sheets to make this recipe.
Japanese sushi is made with Japanese mayonnaise. It tastes a bit different from American mayonnaise but you can use that too as a substitution. See my Japanese mayo recipe on how to turn American mayo into a Japanese flavored mayo.
Use black or white sesame seeds or both together.
It's important to roll in the sushi slowly and as tight as possible. Take your time and press carefully down with both hands while rolling in.