Step 1 : Introduction to the question "A popular kind of sushi, a California roll features what kind of “imitation” seafood inside?"
As one of the most popular styles of sushi in the United States, the California roll has been influential in sushi's global popularity. A California roll, usually made inside-out, contains cucumber, crab meat or imitation crab, and avocado. Often the outer layer of rice in an inside-out roll (uramaki) is sprinkled with toasted sesame seeds, tobiko or masago. The identity of the creator of the California roll is disputed, with chefs from Vancouver and Los Angeles claiming credit. The roll has contributed to sushi's growing popularity in the United States.
