To make the sauce, combine the soy sauce, sugar, apple cider vinegar, garlic puree, Worcestershire sauce, and ginger. Set aside.
Set your pressure cooker to brown and allow to heat up. Add the sesame oil and when it is hot, add the chicken. Allow to brown for about a minute or so on each side just until it starts to turn golden brown.
Add the sauce to the browned chicken and stir to coat. Set the pressure cooker to high pressure and set the time to 8 minutes. It will take about 5 minutes to get to pressure. Once done cooking, so a quick release of the pressure. Remove the chicken, set aside, and tent with foil to keep warm.
In a small dish, combine corn starch with 1 tablespoon of water to make a slurry. With the lid off, set the pressure cooker to saute and add the cornstarch slurry. Whisk constantly and cook until it thickens, about 5 minutes.
Serve chicken with additional sauce. It goes great with rice and steamed broccoli.