01 -
Preheat the oven broiler to 260°C. Place tomatillos, jalapeños, serrano peppers, and onion slice on a baking sheet. Broil for 4–6 minutes, turning once, until both sides are evenly blistered and lightly blackened.
02 -
Transfer the charred tomatillos, peppers, and onion to a plate. Allow them to cool for 5 minutes to avoid overheating the blender and preserve the bright green color.
03 -
Add the cooled tomatillos, peppers, onion, avocado, garlic, lime juice, salt, and Mexican oregano to a blender or food processor. Blend at high speed until completely smooth and creamy.
04 -
Taste the salsa and adjust seasoning as desired, adding additional salt or lime juice if needed for balance.
05 -
Transfer salsa to a serving bowl. Serve immediately with tortilla chips, or use as a topping for tacos, burrito bowls, or other dishes as desired.