Pour 1 c water into Instant Pot bowl, then place 2 pounds chicken wings in steamer basket in Instant Pot.
Close Instant Pot lid, and set vent to sealing. Set to Manual, and cook for 10 minutes, at high pressure. It should take about 20 minutes from start to finish.
Once wings are done, turn vent to ‘venting’ and let pressure release, once steam stops, remove lid.
Just prior to serving, set oven to broil. Remove chicken wings and place on a lined baking sheet, slather wings with BBQ sauce, and broil for just 2-3 minutes.
While wings are in the oven, mix together ¼ c mayonnaise and 1+ T sriracha in a dipping bowl, and pour more BBQ sauce into another dipping bowl.
Transfer hot chicken wings from baking sheet to serving bowl, sprinkle with 1 T sesame seeds, enjoy.