In a small bowl, add the soy sauce, water, brown sugar, rice wine vinegar, sesame oil, garlic, and ginger and mix well.
Place ½ the sauce along with the salmon fillets in large plastic zippered bag, seal, and let sit for 30 minutes.
Place the remaining sauce in a small sauce pan.
In a small bowl, mix together water and cornstarch and mix well.
Add cornstarch slurry to the remaining sauce in the saucepan and simmer over low heat until thickened. About 3-5 minutes. Set aside.
In the base of the Instant Pot, add the rice and water. Place the instant pot trivet or a steamer basket on top of the rice and place a large piece of parchment paper on top, making a nest with it.
After 30 minutes, when salmon is ready to cook, place the fillets on top of the piece of parchment paper. The parchment paper will prevent dripping onto the rice.
Place the lid on the instant pot and lock, close the steam valve, and press the MANUAL button. Adjust the time to 4 minutes.
When the Instant Pot is done, remove the parchment paper with the salmon fillets and set aside.
Remove the trivet or steamer basket and fluff the rice.
Serve the teriyaki salmon with the teriyaki sauce you thickened and set aside earlier and place over rice. Add sliced green onions and sesame seeds for garnish if desired.
Recipe by Smashed Peas & Carrots at https://smashedpeasandcarrots.com/instant-pot-teriyaki-salmon-and-rice/