Ingredients:
5 Tbsp. chopped fresh cilantro, divided
1/4 cup minced white onion
1 large jalapeño, seeded, minced, divided
Kosher salt
6 medium or 4 large avocados (about 3 lb. total), halved, pitted
1 medium tomato, cored, chopped
3 Tbsp. fresh lime juice
1 tsp. lime zest
Tortilla chips (for serving)
Directions:
Combine 2 1/2 Tbsp. cilantro, onion, and 1 Tbsp. jalapeño in a mortar or a large bowl; season with salt and mash with a pestle or the back of a fork until a coarse paste forms.
Using a small knife, cut flesh (not skin) of each avocado lengthwise into 4 strips, then crosswise 4 or 5 times, forming cubes. Using a spoon, scoop cubes out of peel and into mortar with onion mixture. Mash until slightly chunky.
Mix in remaining cilantro and jalapeño along with the tomato, lime juice, and zest. Season to taste with salt.
Serve with tortilla chips. DO AHEAD Can be made 4 hours ahead. Press plastic wrap on surface of guacamole and chill.