01 -
Preheat oven to the high broiler setting. Place an oven rack on the highest rung, line a baking sheet with foil, and arrange tomatillos, garlic cloves, onion slices, and pineapple slices on the sheet.
02 -
Broil the prepared ingredients on high for 10 minutes. Remove the baking sheet from the oven, flip all ingredients, and return to the oven. Broil for another 5 minutes or until gently charred. Watch closely to avoid burning.
03 -
Transfer the broiled ingredients to a high-speed blender or food processor. Add the chipotle peppers and blend briefly or pulse to maintain a chunky texture. Avoid over-processing.
04 -
Taste the salsa and add salt as needed. Stir to combine, then serve immediately or store for later use.