Very important to remove as much air as possible and to use a glass bowl to prevent oxidation. Also if you want it hotter coarsely chop all of the onion instead of just half.
Remove meat from avocados and place in glass mixing bowl.
Add all other ingredients and mix leaving about 1/2 of the avocado in good size chunks.
Press down in same glass bowl to remove all air pockets and place plastic wrap directly on mixture it's self, leaving NO AIR SPACE between mixture and top of glass bowl.