Combine the sauce ingredients in the InstantPot and stir until mixed. Add frozen cod and toss the sauce over the cod pieces until well covered.
Close the InstantPot lid, turn on to Pressure Cook on High for 4 minutes. Let cool down for about 5 minutes. Open and serve!
The juices from, the cod will produce more sauce than you started with, so having a side dish of quinoa or brown rice ready to soak up the spicy goodness will be delicious!