Clean and cut the chicken - Remove excess fat or skin (if there any) from the chicken and cut it into bite-size pieces (Or ask the butcher to do it for you).
Place the chicken in the Instant Pot and add salt, pepper, soy sauce, lemon juice, ketchup, garlic, ginger and brown sugar. Stir well to combine.
Close the lid and cook at high pressure for 7 minutes.
When cooking time ends, wait for a natural pressure release for 10 minutes.
Once done, do a quick pressure release and open the lid.
In a cup, mix cornstarch with water and pour it over the chicken.
Cook on "saute" for a few minutes until thickened.
Stir in cashews and cook on "saute" for 2 more minutes.
Serve and enjoy!