Grilled Pork Tacos With Pineapple

Step 1: Preheat a grill to medium high. Put the chiles on a microwave safe plate and microwave until fragrant and pliable, about 10 seconds (or toast in a small dry skillet over medium heat). Remove stems, then tear the chiles and transfer to a blender. Add the vegetable oil, 1 pineapple slice, the orange juice, 1/2 teaspoon salt and a few grinds of pepper. Puree until smooth.

Step 2: Trim the pork, then halve crosswise and lengthwise to create 4 pieces. Put in a shallow dish, add the chile puree and turn to coat; let marinate, 10 to 15 minutes.

Step 3: Mean while, put the onion in a fine-mesh sieve and rinse under cold water; transfer to a bowl. Stir in the lime juice and a big pinch each of salt and pepper; set aside.

Step 4: Remove the pork from the marinade and season with salt and pepper. Oil the grill grates, then transfer the pork and remaining 2 pineapple slices to the gill. Cover the grill and cook, turning the pineapple and pork occasionally, until the pineapple is well marked, about 4 minutes, and the pork is just cooked through and lightly charred, 8 to 10 minutes.

Step 5: Chop the pineapple and add to the onion mixture along with the chopped cilantro; season with salt and pepper. Slice the pork and the avocado. Warm the tortillas as the label directs. Fill with the pork, pineapple mixture, avocado and the cilantro leaves.