Cut avocado in half then remove pits and scoop out the avocado with a spoon . chop avocados and add the onions and mix and mash add the rest of the ingredients except tomato . I normally use a little chopper for the guacamole but is not necessary but in that case I add the tomato after everything is been properly mix. Remember you always can change the amount of salt to your taste, same thing with the vinegar. Enjoy By Wandiviris !!