Add onion and garlic, and beans to the Instant Pot.
Add the chicken breasts, spices, and green chilies.
Top with 3 cups of chicken broth.
Close and seal Instant Pot and set to MANUAL for 20 minutes.
Allow the Instant Pot to NATURAL RELEASE for 15 minutes before taking the lid off.
Remove chicken breasts and shred. I use a hand mixer for this.
Add the shredded chicken back to the pot.
Set to SAUTE, add in half & half and corn, stir.
Add together 2 tsp of cornstarch and 2 teaspoon of water. Blend and add to Instant Pot to chicken chili.
Saute for about 3 minutes.
Serve with desired toppings.
Notes
Drain and rinse the canned beans before adding them. The chili will be too soupy otherwise.
Do not add the half and half before pressure cooking. It can scorch or separate under heat. Stir it in on sauté at the end with the corn.
Shred the chicken with a hand mixer right in the pot. It takes about 30 seconds and gets it finer than two forks.
The cornstarch slurry needs cold water. Hot water makes it clump. Whisk it smooth before pouring it in, then simmer on sauté for about 3 minutes to thicken.
Leftovers keep in the fridge for up to 4 days. The chili thickens as it sits. Add a splash of chicken broth when you reheat it.