Cut chicken into bite size pieces and dice your onion, add to your pressure cooker and cook until outsides of chicken pieces are white and pink is gone (doesn't have to be completely cooked thru).
Turn pressure cooker off and scrape bottom of pot to remove stuck on pieces of meat to deglaze it.
Add soy sauce, garlic, brown sugar, ginger, and salt, curry and garam masala. Stir to coat chicken with spices.
Add in diced bell pepper, can of chiles, cilantro, snap peas and coconut milk and gently stir to combine.
Put lid on and close steam valve.
Set to pressure, high, for 3 minutes.
Do a quick release.
If you want liquid to thicken add 1/2 cup of hot liquid in pot to a small bowl with 1.5 tbsp. cornstarch and whisk together. Pour back into pot and slowly stir it in.
Allow to sit for 5 minutes or so to thicken more if desired.