Sushi-Zu:
- 3 Tbsp (38g) granulated sugar
- 1 Tbsp (18g) fine sea salt
- 1 cup (237ml) rice vinegar
- 1 piece kombu
Sushi Rice:
- 2 cups (496g) sushi rice
Spicy Tuna:
- 1 Tbsp (15g) light miso
- ½ cup 1 Tbsp (140g) Kewpie mayonnaise, divided
- 3 Tbsp (45g) sriracha, divided
- 1 Tbsp (15g) lemon juice
- 4-6 oz piece sashimi grade tuna, cut into ½” cubes
- 1 tsp (5g) toasted sesame oil
Assembly:
- 1 pack nori sheets
- Toasted white sesame seeds
- 1 avocado, thinly sliced
- Crispy fried onions or shallots, to taste
- 2 Thai chilies, stemmed and thinly sliced
- 3 green onions, ends trimmed and thinly sliced