Cook 1 cup of sushi rice according to the package instructions. Once cooked, let it cool slightly.
On one large nori sheet, spread some sushi rice, top with mayo, avocado, salmon, siracha and then top with another layer of rice.
Top with a circular nori sheet and wrap the large nori sheet all around it.
Cover with a plastic wrap and wrap very tightly and let it cool in the fridge for about 1 hour.
In a bowl, add in the flour ,cornstarch, water and mix.
Dip the sushi burger in the flour mixture, then in the panko breadcrumbs.
Fry till golden.
Top with some extra mayo and siracha and serve while warm!