Sushi Roll

Ingredients

• 2/3 cup uncooked short-grain white rice
• 3 tablespoons rice vinegar
• 3 tablespoons white sugar
• 1 1/2 teaspoons salt
• 4 sheets nori seaweed sheets
• 1/2 cucumber, peeled, cut into small strips
• 2 tablespoons pickled ginger
• 1 avocado
• 1/2 pound imitation crabmeat, flaked