Rinse sushi rice under cold water until the water runs clear. Combine rinsed rice with water, cover, and bring to boil. Reduce heat to low and simmer for 15 minutes. Let it steam for an additional 10 minutes.

While warm, mix together rice vinegar, sugar, and salt until dissolved. Fold into cooked rice using a wooden spatula.

Thinly slice cucumber and dice avocado. Aim for even sizes for a beautiful presentation.

In each bowl, layer sushi rice, cucumber slices, diced avocado, and shredded crab meat. Create an aesthetically pleasing arrangement.

Mix soy sauce and sriracha to taste. Drizzle over the assembled bowls.

Serve immediately for maximum freshness and flavor.