Is this recipe very spicy?
It is medium as written. For mild, use 1 chipotle pepper and skip the extra adobo sauce. For spicy, use 3 peppers plus 1 more tablespoon adobo, and finish with hot sauce.
Can I use chicken thighs instead of breasts?
Absolutely. Boneless skinless thighs stay extra juicy and shred like a dream. Cook time stays the same. If you are using breasts and want the most forgiving texture, choose Low when you can.
Do I have to shred the chicken?
No, but shredding helps the chicken soak up the smoky sauce. If you prefer chunks, cut the chicken into large pieces after cooking and stir back in.
My sauce looks thin. How do I thicken it?
Two easy fixes: (1) remove the lid for the last 20 to 30 minutes on High to reduce, or (2) stir in a cornstarch slurry (1 tablespoon cornstarch mixed with 1 tablespoon water) and cook 10 more minutes.
Can I make this in an Instant Pot?
Yes. Cook on High Pressure for 12 to 15 minutes (depending on thickness and whether the chicken is in one layer), then natural release for 10 minutes, quick release the rest, and confirm the chicken hits 165°F. If it is not there yet, lock the lid back on and cook 2 to 3 minutes more. Shred, then reduce on Sauté if needed.