For the avocado soup, cut the avocados in half and remove the stones. Remove the flesh from the skins with a small spoon and mash with the whipped cream.
Bring the soup to a boil, remove from heat, and gradually blend into the avocado puree until the desired consistency is achieved. Season with salt and pepper.
For the garnish, wash the tomatoes, remove the seeds and cut into small cubes. Peel and finely chop the onion. Pluck the cilantro and chop finely as well. Optionally, deseed the chili pepper (or part of it) and chop finely. Mix everything with the olive oil.
Divide the avocado soup among plates, put some of the tomato mixture and serve with the tortilla chips.