Classic Guacamole | America's Test Kitchen

Ingredients

• 2 tablespoons finely chopped onion
• 1 serrano chile , stemmed, seeded, and minced
• 1 teaspoon Kosher salt
• 1/4 teaspoon grated lime zest plus 1 1/2–2 tablespoons juice
• 3 ripe avocados , halved, pitted, and cut into 1/2-inch pieces
• 1 plum tomato , cored, seeded, and cut into 1/8-inch dice
• 2 tablespoons chopped fresh cilantro