In a rice cooker, if you can, cook your rice according to the package instructions. Then mix rice vinegar, sugar and a pinch of salt together and add it to your cooked rice. Stir in sesame seeds and let completely cool in the fridge, preferably overnight.
1½ cup calrose rice, 1 tbsp rice vinegar, 1 tbsp sugar, 1 pinch salt, 3 tbsp black toasted sesame seeds
Spicy Scallop Mixture
In a bowl, mix scallops, Japanese mayo, sriracha, sesame oil, rice vinegar, tamari and scallions.
Spray the springform with cooking oil. Add half of the rice on the bottom and press it down. Evenly layer the toasted nori, avocado slices then the cucumber slices on top. Add the rest of the rice and more nori and press down really well. Top it with the scallops.
Add to your broiler and let bake for about 2 minutes and 4 minutes max.
Citrus Tamari Sauce: While that bakes, mix together the cilantro, chopped Serranos, orange juice, lemon juice and Tamari.
2 tbsp cilantro, Serrano, ½ orange, ½ lemon, Tamari
Remove the sides of the springform. Take your Japanese mayo bottle and evenly squeeze about 1 tbsp in an S pattern on top. Do the same with the sriracha. Sprinkle with shichimi togarashi and place the Serrano slices around. Serve with the citrus tamari sauce and that is it!