Ingredients

• 1 cup uncooked medium-grain white rice (such as calrose variety)
• 1 ¼ cups water
• 3 tablespoons rice vinegar
• 2 teaspoons white sugar
• 1 teaspoon kosher salt
• 1 tablespoon toasted sesame seeds
• 2 tablespoons bonito flakes (optional)
• 1 sheet nori (dried seaweed), cut into thin strips (optional)
• ⅔ cup mayonnaise
• 1 tablespoon soy sauce
• ½ teaspoon toasted sesame oil
• 2 tablespoons sriracha hot sauce
• 1 cup bay scallops
• 12 peeled and deveined large shrimp, cut into 1/2-inch pieces
• 1 pinch cayenne pepper, or to taste
• 1 dash sriracha hot sauce, or to taste
• 1 pinch toasted sesame seeds, or to taste
• ¼ cup thinly sliced green onions