Making California Roll Sushi:

• Step 1: Prepare the Sushi Rice. Rinse 2 cups of sushi rice under cold water until the water runs clear. Cook the rice according to your rice cooker’s instructions or in a pot with 2 1/2 cups of water. Let it sit for 10 minutes, then transfer it to a mixing bowl.
• Step 2: Season the Rice. Mix 1/4 cup rice vinegar, 2 tablespoons sugar, and 1 teaspoon salt in a bowl. Heat slightly until the sugar dissolves, then pour over the rice and fold gently.
• Step 3: Prepare the Fillings. Slice the cucumber into thin strips and cut the avocado in half, removing the pit. Scoop out the flesh and slice into thin strips.
• Step 4: Assemble the Sushi. Lay a sheet of nori, shiny side down, on your sushi mat. Wet your hands and spread a handful of sushi rice over the nori, leaving about an inch at the top edge.
• Step 5: Add the Fillings. Lay down strips of cucumber, avocado, and pieces of imitation crab in the center of the rice.
• Step 6: Roll It Up. Start rolling the nori away from you, applying gentle pressure to form a tight roll. Use water to seal the seam of the nori.
• Step 7: Cut the Roll. Slice the roll into six or eight equal pieces with a wet knife.
• Step 8: Garnish and Serve. Sprinkle sesame seeds over the top and serve with wasabi, pickled ginger, and soy sauce.