Wash the rice 2-3 times or until the water is clear. Drain well and transfer the rice to a large saucepan.
Cover with the water and bring to a boil. Once boiling, reduce the heat to a simmer and cover with a lid. Cook covered for 8-9 minutes or until no water remains. Remove from heat and let the rice steam for another 15 minutes (with the lid on).
Transfer the sushi rice to a large baking dish or bowl. Pour in the seasoned rice vinegar and stir to combine. Cover with a damp kitchen towel and let cool for about 1 hour at room temperature.
Seaweed Tofu
Heat the oil in a non-stick skillet over medium heat. Once hot, add the tofu rectangles and fry on each side for 5-7 minutes, or until the tofu is golden brown. Remove from the skillet and transfer to a plate lined with a kitchen paper towel to remove the excess oil.
In a small bowl, mix together 1 teaspoon of cornstarch with 1 tablespoon of water. Set aside.
Wrap each rectangle of tofu with a strip of nori and slightly wet the end of the strip with the cornstarch mixture to seal.
To a non-stick skillet, add a tablespoon of oil and fry the nori-wrapped tofu for about 2 minutes. Next, add the water, soy sauce, coconut sugar, sriracha, and cornstarch. Stir to combine. Let simmer for about 5 minutes, flipping regularly to coat the tofu with the sauce.
Remove from heat once almost all of the sauce has been absorbed by the tofu.
Wasabi Mayo
In a small bowl, stir together the mayo with the wasabi paste. Taste and adjust the spiciness to your liking.
To Assemble
Divide the sushi rice between two serving bowls. Top with the nori-wrapped tofu, avocado slices, fried shallots, carrots, and drizzle with the wasabi mayo!