01 -
Rinse the sushi rice under cold water until the water runs clear. Combine rice and 1 ½ cups water in a pot. Bring to a boil, then reduce to low heat, cover, and simmer for 18-20 minutes. Remove from heat and allow the rice to steam for 10 minutes. Stir in 1 tablespoon rice vinegar and ½ teaspoon salt.
02 -
Heat olive oil in a skillet over medium heat. Add shrimp and cook until pink and opaque, about 2-3 minutes per side. Mix soy sauce, rice vinegar, sugar, sesame oil, and sriracha sauce in a bowl. Toss cooked shrimp in the sauce mixture until well coated.
03 -
Slice the avocado and julienne the cucumber. Set aside toppings.
04 -
Using a ramekin or stacking mold, layer sushi rice on the bottom, followed by cooked shrimp, avocado slices, and julienned cucumber. Press gently to compact. Carefully remove the mold.
05 -
Drizzle mayonnaise on top of the stacks. Garnish with sesame seeds, fresh cilantro, or green onions, if desired. Serve immediately.