Begin by dicing your red onion and jalapeno pepper. Remove the seeds and ribs from the jalapeno and discard them along with the outmost shell of the onion. Set the red onion and jalapeno aside.
Cut the avocados in half and remove the seed. Scoop out the inside of the avocado and add to a blender or food processor. Once all your avocados are sliced and added to the blender, blend on low-med until smooth and creamy. If you want more chunky guacamole you can just pulse until it reaches your desired consistency.
Add the blended guacamole and all the remaining ingredients to a large prep bowl and stir to combine. The mixture will be creamy, smooth and not super thick. Taste the guacamole and adjust the salt and pepper if needed. Serve immediately with tortilla chips and enjoy!