For rice that has more separated grains once cooked, rinse it first in a fine mesh sieve until the water runs clear. This step removes any starch from the rice. If you really don’t care about the more separated grains, skip the rinsing!
If you have a rice cooker, I highly recommend using it here - we have this one (affiliate link) and use it all the time Add the rice (rinsed or not) and water to the rice cooker and cook according to the manufacturer’s instructions. Or cook the rice on the stovetop according to package directions, until the rice is plump and just tender. While the rice cooks, prepare the teriyaki chicken.
In a small bowl, whisk together the rice wine vinegar, sugar, and salt. Sprinkle evenly over the cooked rice and fold briefly to incorporate.
For the spicy sauce
In a small bowl, whisk together the sauce ingredients until smooth. Set aside until ready to use.
To assemble.
Divide the rice equally between 2 bowls and top with chicken. Add your favorite toppings and sprinkle with green onions, sesame seeds then drizzle with sauce.