Press the button SAUTÉ. Set it for HIGH, MORE, or CUSTOM 400°F and set the time for 10 minutes.
Stir the enchilada sauce, broth, thyme, cinnamon, and cumin in an Instant Pot. Cook, stirring occasionally, until several wisps of steam come up off the sauce. Add the frozen quesadillas to the sauce without pushing them to the bottom of the pot. (The tops of a couple of the quesadillas will perhaps not be touched by the sauce.) Lock the lid onto the pot.
Option 1Max Pressure Cooker Press Pressure cook on Max pressure for 5 minutes with the Keep Warm setting off.
Option 2All Pressure Cookers Press Soup/Broth or Pressure cook (Manual) on High pressure for 8 minutes with the Keep Warm setting off. The valve must be closed.
Use the quick-release method to return the pot’s pressure to normal. Unlatch the lid and open the pot. Use cleaned kitchen shears to cut up the quesadillas, or pull them to rough shreds with two forks. Serve the soup by scooping up the broth with bits of the tortillas and their (former) filling.
Notes
Beyond • For an 8-quart Instant Pot, you must increase the broth to 3 cups. • For a heartier soup, add one drained and rinsed 15-ounce can of black or red kidney beans or one drained 15-ounce can of corn to the pot after you release the pressure and cut up the quesadillas. Simmer on the SAUTÉ function at MEDIUM, NORMAL, or CUSTOM 300°F for 2–3 minutes, stirring often, just to heat the beans and corn through.
• For a thicker stew, add one of those cans of vegetables mentioned above, plus up to 1 pound chopped, skinned,and deboned rotisserie chicken meat. Simmer in the same way.