Step 1

Put the garlic cloves in a mini food processor, and process until finely chopped. Add the chipotle peppers with their sauce and season with salt and pepper. Process until smooth, stopping and scraping down the sides occasionally.

Step 2

Season the chicken with salt and pepper, and transfer to a bowl. Add the chipotle marinade, and toss to coat. Let sit at room temperature for 15-45 minutes, or cover and refrigerate for up to 24 hours.

Step 3

Mix together the sour cream, grated garlic, lime zest, lime juice, scallions, and mint or cilantro. Season with salt and pepper.

Step 4

Preheat a grill or grill pan to medium-high. If the chicken was refrigerated, let it come to room temperature.

Step 5

Remove the chicken from the marinade, leaving some of the marinade sticking to the meat. Oil the grill grates, then grill the chicken on both sides until cooked through, about 5 minutes per side. Transfer to a cutting board and let rest 5-10 minutes. Using two forks, coarsely shred the chicken.

Step 6

Pile the chicken into warmed corn or flour tortillas and top with napa cabbage, avocado slices and the lime crema. If you’d like, sprinkle with a bit of crumbled Cotija or feta cheese. Serve with hot sauce and the remaining crema at the table.