Slice the avocados in half, remove the pit, and scoop the flesh into a mixing bowl.
Mash the avocado with a fork until you reach your desired consistency, whether chunky or smooth.
Add in the diced onion, tomatoes, cilantro, jalapeno pepper, minced garlic, lime juice, and sea salt.
Stir all the ingredients together until well combined.
Taste the guacamole and adjust seasoning if needed, adding more salt or lime juice according to your preference.
Serve your homemade guacamole with crispy tortilla chips and enjoy!