Pressure Cook Gumbo:
Add 1 tbsp fish sauce, 1 tbsp Worcestershire sauce, remaining unsalted chicken stock, browned chicken thighs and Andouille sausage. Give it a quick mix and layer the okra on top. Close lid and pressure cook at High Pressure for 7 minutes, then 15 minutes Natural Release. After 15 minutes, turn Venting Knob to Venting Position to release remaining pressure.
Remove chicken thighs from Instant Pot and shred the meat. Discard the skin and bones. Add the shredded meat back into the Gumbo and give it a quick stir. Taste and adjust seasoning with more salt (for reference, we added 4 more pinches of kosher salt) and cayenne pepper.