Guacamole is an avocado-based dip that originated with the Aztecs in Mexico. In addition to its use in modern Mexican cuisine it has also become part of American cuisine as a dip, condiment and salad ingredient. It is traditionally made by mashing ripe avocados and sea salt with a molcajete (mortar and pestle). Some recipes call for tomato, onion, garlic, lemon juice, chili, yogurt and/or additional seasonings.