In your instant pot, push saute and add the jalapeno, onion, and garlic and saute for 3-4 minutes or until soft.
Turn the saute feature OFF.
In your blender, combine 1 C. of the drained beans with 1/2 can of the corn, 2 of the green chiles (or 1 can if you are using canned versus fresh), onion, garlic, jalapeno, cumin, chili powder and salt - blend until a thick paste forms.
This paste is the base for your chili.
Pour the blended paste into your instant pot with the chicken broth, remaining cup of beans, remaining corn, and green chile chicken.
Blend 1/4 C. of the soup with the maseca corn flour to make a thick paste, then add back to the instant pot & stir in until well blended. This is not mandatory, but will add both taste and texture to your chili.
Put the lid on the instant pot, and turn the knob to seal.
Place the pot on high (manual) for 5 minutes to allow the flavors to blend.
At the end of the 5 minutes, allow for a natural release for 10 minutes, then do a quick release.
Adjust your seasonings as necessary, stir in the 1/2 C. chopped cilantro.
Ladle into bowls and serve with additional chopped cilantro, sour cream or additional green chiles for garnish.