What is the primary ingredient in guacamole?

The primary ingredient in guacamole is avocado. Ripe avocados provide the dish’s creamy texture, green color and characteristic rich flavor.

Guacamole originated in Mexico and is traditionally made by mashing avocados with salt, often using a molcajete and tejolote, a mortar-and-pestle combination. Modern recipes commonly add lime juice, onion, cilantro and jalapeño, but those ingredients season or supplement the avocado rather than forming the base of the dish.

The word guacamole comes from Classical Nahuatl āhuacamōlli, meaning “avocado sauce.” It combines āhuacatl, meaning avocado, with mōlli, meaning sauce or mole. The dish has since become internationally popular as a dip, spread and accompaniment to tacos and other foods.

Tomato and sour cream are frequent additions in some recipes, while peas or other substitutes appear in non-traditional versions. Exposure to air can turn mashed avocado brown through enzymatic oxidation, so cooks often limit air contact or add acidic lime juice to help preserve its color and freshness.