Crispy rice Waffles

Bahan-bahan

1 cup uncooked @think_rice sushi rice, cooked according to package instructions

2 tablespoons rice vinegar, divided

1/ 2 tablespoon sesame oil

1 tablespoon mirin

1 teaspoon sea salt

Cooking spray

6-8 ounces sushi-grade tuna, chopped into small cubes

1 tablespoon soy sauce

1/ 2 tablespoon sriracha, plus more to garnish

Wasabi, optional, to taste

1 teaspoon sesame seeds

Kewpie mayonnaise, for garnish

1/ 2 cup cucumber, finely diced

Thinly sliced green onion, for garnish

1 nori sheet, crumbled into pieces