1. California rolls were created to make sushi more accessible to Western palates unfamiliar with raw fish and seaweed. 2. They are made inside out with the rice on the outside and fillings of avocado, cucumber, and imitation crab inside wrapped in seaweed. 3. To make California rolls, prepare sushi rice and ingredients, lay out seaweed with rice, add fillings, roll using a bamboo mat, cut into pieces and serve.