Learn how to make Homemade California Crunch Roll Sushi with this easy step-by-step crunchy roll guide. This California crunch roll is filled with imitation crab, avocado, cucumber, and creamy mayo, then topped with crispy tempura flakes for the perfect crunch. Better than takeout, this homemade sushi recipe shows you how to roll, slice, and serve the best crunchy California roll at home in 2026.