Feel free to use bone-in, skin-on chicken, although cooking time will increase on the grill.
Instead of grilling you can also roast boneless, skinless thighs, in the oven at 400F for roughly 20 minutes (internal temp 165-170) or pan-sear ( bone-in, skin-on thighs) then finish in the oven. Traditionally, in Peru, a whole chicken is marinated then roasted in the oven, but to save time here, I used boneless, skinless thighs, and breast would work just as well.
A note on Peruvian Green Sauce ( Aji Verde): Mayo is traditional. I prefer sour cream, or a blend of sour cream and mayo.
***This can easily be made vegan by subbing vegan mayo, or instead of mayo, using 1/4 cup raw cashews and 1/4 cup water, with a tablespoon of lime juice and upping the salt to 1/2 teaspoon, blending in a high-powered blender. If your blender is not “high-powered” soak the cashews for 4 hours first, so they soften.