This recipe makes 3 rolls, about 24 pieces.  You will need a "makisu", which is a sushi rolling mat.
            Ingredients:
        
         
          
          - 1+1/2 American 
              cups (400 cc or 340 g) California Rose Rice 
              (short grain)
 - 
              1 + 2/3 American cups (395 g) water
 - 
              2 Tbsp. + 1 1/2 tsp. (35 cc) rice vinegar
 - 
              1 Tbsp. + 2 tsp. (20 g) granular sugar
 - 
              1 + 4/5 tsp. (10 g) salt 
 - 
              2 1/2 inches (6 cm) Dashi Konbu 
              (dried seaweed for broth) 
 - 
              8 oz. (224 g) imitation crab meat
 - 
              4 tablespoons mayonnaise
- 
              1/4 teaspoon salt
 - 
              1 tablespoon vinegar
  - 
              1 cucumber
 - 
              3 sheets of nori (dried seaweed sheets)
 - 
              1 and a half avocado
 - 
              2 tablespoons sesame seeds
          
 
        
        
          
            Making Sushi Rice
        
        
          - Wash the rice until the water rinses clear. 
        
         
          
          - 1+1/2 American 
              cups (400 cc or 340 g) California Rose Rice (short grain)
              or measure 2 cups with the rice cooker measuring cup (1 cup = 200 cc)
          
 
        
         
           - Drain the rice in a colander and set aside for 20 
            minutes.
        
         
          
          
          
        
         
          
 - Place the rice in a sauce pan or rice cooker and 
            add water. Turn on a rice cooker or if you are cooking with a sauce 
            pan, cover the pan with a lid and bring it to a boil over high heat.
            Once it starts boiling, turn to low and let it simmer until the water 
            is gone (about 20 minutes).  Turn off the heat and let it rest with 
            a lid for an additional 5 minutes.
        
         
          
          - 1 + 2/3 American cups (395 g) water
              
 
           
        
         
           - While the rice is cooking, in a small sauce pan, 
            mix:
        
         
          
          
-  2 Tbsp. + 1 1/2 tsp. (35 cc) rice vinegar
 - 
            1 Tbsp. + 2 tsp. (20 g) granular sugar
 - 
            1 + 4/5 tsp. (10 g) salt 
            
 
           
        
         
           - Heat the vinegar mixture over low heat until sugar 
            and salt are completely dissolved. Never let it boil. Add and leave 
            for 30 minutes in the vinegar sauce:
        
         
          
          - 2 1/2 inches (6 cm) Dashi Konbu 
              (dried seaweed for broth) 
              
 
           
        
         
           - Spread the cooked hot rice into a large bowl. Immediately 
            sprinkle the vinegar sauce over the rice and mix with a thin spatula. 
            Cut the lumps of rice into small pieces so the vinegar will be evenly 
            fold into rice. Mix quickly while the rice is very hot. Avoid unnecessary 
            smashing or pressing motions.
        
         
          
           
          
        
         
          
 - Cover the rice with a plastic and set aside.
        
 
        
         
          
        
         
          Making California Rolls
        
         
          - Chop finely:
        
         
          
          - 8 oz. (224 g) imitation crab meat
              
 
           
        
         
           - Add the seasoning to the above and mix well:
        
         
          
          - 4 tablespoons mayonnaise
 - 
              1/4 teaspoon salt
 - 
              1 tablespoon vinegar
              
 
           
        
         
           - Using a spoon, scrape out the seeds from the cucumber. Cut lengthwise 
            into 1/2 inch wide strips. Sprinkle a dash of salt and set aside.
        
         
          
          
-  1 cucumber
              
 
           
        
         
           - Peel, remove seeds and cut lengthwise into 1/2 inch 
            wide strips:
        
         
          
          
        
         
          
 - Place a sushi rolling mat (makisu) on your working surface. Cover the mat 
            with a sheet of plastic wrap.
        
         
          
           
          
        
         
          
 - Spread 1/3 of rice thinly and evenly over the plastic. 
            Press the rice with your finger tips using a sheet of plastic wrap 
            so that the rice won't stick to your fingers.
        
         
          
          
        
         
          
 - Place a sheet of nori (dried seaweed sheet) on top of the rice.  Then on one end of the nori, 
            add a strip of crab mixture, sliced cucumber and a few slices of avocado.
        
         
          
          
            
        
         
          
 - Start rolling from the side with the filling (fig. 1), lifting up 
            the rolling mat and pushing the filling with your finger tips 
            so that they will not fall out (fig. 2). When the starting edge of the roll touches 
            the seaweed (nori), start pulling the plastic sheet and rolling mat away from the sushi roll, because 
            you do not want to include the plastic wrap and rolling mat in your sushi roll (fig. 3).
            Keep rolling forward as you pull the plastic sheet and rolling mat away from the sushi roll (fig. 4).  
            After rolling all the way, open the mat, place the roll in the middle of the mat 
            and give the final squeeze to make the rice stick together (fig. 5).
            Open the mat and remove the plastic sheet (fig. 6).
        
         
          
          
        
         
          
 - Lightly toast sesame seeds in a frying pan.
        
         
          
          - 2 tablespoons sesame seeds
 
 
            
 
           
        
         
           - Sprinkle 1/3 of sesame seeds on a cutting board. 
            Place the roll and roll on the board so the seeds will stick to the 
            roll. Slice with a clean and wet knife, to prevent the rice from sticking to the knife.